SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Realogy Holdings Corp., et al. – ‘10-Q’ for 9/30/19 – ‘EX-101.DEF’

On:  Thursday, 11/7/19, at 7:40am ET   ·   For:  9/30/19   ·   Accession #:  1398987-19-252   ·   File #s:  1-35674, 333-148153

Previous ‘10-Q’:  ‘10-Q’ on 8/8/19 for 6/30/19   ·   Next:  ‘10-Q’ on 5/7/20 for 3/31/20   ·   Latest:  ‘10-Q’ on 11/2/23 for 9/30/23

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

11/07/19  Realogy Holdings Corp.            10-Q        9/30/19   86:16M
          Realogy Group LLC

Quarterly Report   —   Form 10-Q   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   1.44M 
 2: EX-10.1     Letter Agreement Between Realogy Holdings Corp.     HTML     42K 
                and John Peyton                                                  
 3: EX-15.1     Letter Regarding Unaudited Interim Financial        HTML     25K 
                Statements                                                       
 4: EX-31.1     Certification of the Chief Executive Officer of     HTML     28K 
                Realogy Holdings Corp.                                           
 5: EX-31.2     Certification of the Chief Financial Officer of     HTML     29K 
                Realogy Holdings Corp.                                           
 6: EX-31.3     Certification of the Chief Executive Officer of     HTML     29K 
                Realogy Group LLC.                                               
 7: EX-31.4     Certification of the Chief Financial Officer of     HTML     29K 
                Realogy Group LLC.                                               
 8: EX-32.1     Certification of Realogy Holdings Corp.             HTML     26K 
 9: EX-32.2     Certification of Realogy Group LLC                  HTML     26K 
63: R1          Cover Page                                          HTML     75K 
20: R2          Cover Page and DEI Document and Entity Information  HTML     37K 
46: R3          Condensed Consolidated Statements of Operations     HTML    127K 
72: R4          Condensed Consolidated Statements of Comprehensive  HTML     59K 
                Income (Loss)                                                    
60: R5          Condensed Consolidated Balance Sheets               HTML    142K 
16: R6          Condensed Consolidated Statements of Cash Flows     HTML    155K 
45: R7          Basis Of Presentation Recently Adopted Accounting   HTML     92K 
                Pronouncements                                                   
70: R8          Leases Lessee Disclosure - Narrative                HTML     42K 
64: R9          Leases Lessee Disclosure - Lease Liability          HTML     87K 
                Maturity Table                                                   
69: R10         Equity Stock Repurchases                            HTML     56K 
77: R11         Dividends                                           HTML     27K 
50: R12         Basis Of Presentation                               HTML    368K 
22: R13         Leases Lessee Disclosure (Notes)                    HTML    118K 
68: R14         Intangible Assets                                   HTML    128K 
76: R15         Accrued Expenses And Other Current Liabilities      HTML     44K 
49: R16         Short And Long Term-Debt                            HTML    145K 
21: R17         Restructuring Costs Restructuring Costs             HTML    108K 
67: R18         Equity Equity                                       HTML    234K 
78: R19         Earnings Per Share Earnings Per Share               HTML     55K 
37: R20         Segment Information                                 HTML    107K 
29: R21         Subsequent Events                                   HTML     29K 
55: R22         Basis Of Presentation Basis of Presentation         HTML    386K 
                (Policies)                                                       
80: R23         Leases Lessee Disclosure (Policies)                 HTML     27K 
35: R24         Equity Equity (Policies)                            HTML     28K 
28: R25         Basis Of Presentation (Tables)                      HTML    367K 
54: R26         Leases Lessee Disclosure (Tables)                   HTML    124K 
79: R27         Intangible Assets (Tables)                          HTML    129K 
38: R28         Accrued Expenses And Other Current Liabilities      HTML     44K 
                (Tables)                                                         
27: R29         Short And Long-Term Debt (Tables)                   HTML    126K 
23: R30         Restructuring Costs Restructuring Costs (Tables)    HTML    113K 
52: R31         Equity Equity (Tables)                              HTML    228K 
74: R32         Earnings Per Share Schedule of Earnings Per Share,  HTML     54K 
                Basic and Diluted (Tables)                                       
65: R33         Segment Information (Tables)                        HTML    108K 
24: R34         Basis Of Presentation Financial Instruments - Fair  HTML     70K 
                Value Measurements (Details)                                     
53: R35         Basis Of Presentation Financial Instruments - Fair  HTML     66K 
                Value Indebtedness Table (Details)                               
75: R36         Basis Of Presentation Equity Method Investments     HTML     41K 
                (Details)                                                        
66: R37         Basis Of Presentation Income Taxes (Details)        HTML     27K 
25: R38         Basis Of Presentation Derivative Instruments        HTML     64K 
                (Details)                                                        
51: R39         Basis Of Presentation Restricted Cash (Details)     HTML     27K 
30: R40         Basis Of Presentation Revenue Recognition -         HTML     88K 
                Disaggregation of Revenue (Details)                              
40: R41         Basis Of Presentation Revenue Recognition -         HTML     80K 
                Deferred Revenue (Details)                                       
85: R42         Leases Lessee Disclosure - Supplemental Balance     HTML     55K 
                Sheet Information (Details)                                      
58: R43         Leases Lessee Disclosure - Lease Costs (Details)    HTML     43K 
31: R44         Leases Lessee Disclosure - Supplemental Cash Flow   HTML     39K 
                Information (Details)                                            
41: R45         Intangible Assets - Goodwill (Details)              HTML     57K 
86: R46         Intangible Assets - Intangible Assets (Details)     HTML     69K 
59: R47         Intangible Assets - Amortization Expense (Details)  HTML     55K 
32: R48         Accrued Expenses And Other Current Liabilities      HTML     53K 
                (Details)                                                        
39: R49         Short And Long-Term Debt Schedule of Total          HTML     69K 
                Indebtedness (Details)                                           
47: R50         Short And Long-Term Debt Indebtedness Table         HTML    176K 
                (Details)                                                        
19: R51         Short And Long-Term Debt Maturities Table           HTML     65K 
                (Details)                                                        
62: R52         Short And Long-Term Debt Senior Secured Credit      HTML     98K 
                Facility (Details)                                               
73: R53         Short And Long-Term Debt Term Loan A Facility       HTML     94K 
                (Details)                                                        
44: R54         Short And Long-Term Debt Unsecured Notes (Details)  HTML     78K 
17: R55         Short And Long-Term Debt Other Debt Facilities      HTML     30K 
                (Details)                                                        
61: R56         Short And Long-Term Debt Securitization             HTML     55K 
                Obligations (Details)                                            
71: R57         Short And Long-Term Debt Loss on the Early          HTML     31K 
                Extinguishment of Debt and Write-Off of Financing                
                Costs (Details)                                                  
48: R58         Restructuring Costs Restructuring Costs (Details)   HTML     50K 
15: R59         Restructuring Costs Facility and Operational        HTML     96K 
                Efficiencies Program (Details)                                   
57: R60         Restructuring Costs Leadership Realignment          HTML     49K 
                (Details)                                                        
83: R61         Equity Equity (Details)                             HTML    101K 
43: R62         Equity Stock-Based Compensation (Details)           HTML     36K 
34: R63         Earnings Per Share Earning Per Share (Details)      HTML     54K 
56: R64         Commitments And Contingencies (Details)             HTML     87K 
82: R65         Segment Information - Revenues (Details)            HTML    102K 
42: R66         Segment Information - Operating EBITDA (Details)    HTML    104K 
33: R67         Subsequent Events (Details)                         HTML     31K 
84: XML         IDEA XML File -- Filing Summary                      XML    148K 
18: XML         XBRL Instance -- rlgy-20190930_htm                   XML   5.40M 
36: EXCEL       IDEA Workbook of Financial Reports                  XLSX    116K 
11: EX-101.CAL  XBRL Calculations -- rlgy-20190930_cal               XML    256K 
12: EX-101.DEF  XBRL Definitions -- rlgy-20190930_def                XML   1.00M 
13: EX-101.LAB  XBRL Labels -- rlgy-20190930_lab                     XML   2.00M 
14: EX-101.PRE  XBRL Presentations -- rlgy-20190930_pre              XML   1.34M 
10: EX-101.SCH  XBRL Schema -- rlgy-20190930                         XSD    220K 
81: JSON        XBRL Instance as JSON Data -- MetaLinks              397±   603K 
26: ZIP         XBRL Zipped Folder -- 0001398987-19-000252-xbrl      Zip    721K

‘EX-101.DEF’   —   XBRL Definitions — rlgy-20190930_def

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva -->
<!-- Copyright 2019 Workiva -->
<!-- r:16c24a82-e0a2-40e2-ab8c-6e0fdffbbe12,g:928bd201-ff12-4ecd-842d-e722d3470d84 -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
<link:roleRef roleURI="http://www.realogy.com/role/CoverPage" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CoverPage"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CoverPage" xlink:type="extended" id="i4b947d2c792948d98497c28f8ff797b5_0094c265-4fef-49f5-bb49-273c2c89dd03">
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInformationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_5937f456-5a0d-4620-960a-68beb929fc37" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_DocumentType_5937f456-5a0d-4620-960a-68beb929fc37" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_ea853440-25ab-4440-a44d-90cf31296bfd" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentQuarterlyReport"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_DocumentQuarterlyReport_ea853440-25ab-4440-a44d-90cf31296bfd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_31ae7784-3a8c-4752-9520-27aebb38fd5e" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_DocumentPeriodEndDate_31ae7784-3a8c-4752-9520-27aebb38fd5e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_35b33453-90c9-4ea5-949e-5db45f79f759" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentTransitionReport"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_DocumentTransitionReport_35b33453-90c9-4ea5-949e-5db45f79f759" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_ecaf0c77-4586-4af9-8928-c6fc94492223" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityFileNumber_ecaf0c77-4586-4af9-8928-c6fc94492223" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_7bb8b6eb-9de1-4811-83ae-6f8782e84a8b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityRegistrantName_7bb8b6eb-9de1-4811-83ae-6f8782e84a8b" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_9a86d057-491c-45ef-8815-9c0803d3c6d9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityTaxIdentificationNumber_9a86d057-491c-45ef-8815-9c0803d3c6d9" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_9e29c837-8956-4b39-98f3-423e10b00a4b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityAddressAddressLine1_9e29c837-8956-4b39-98f3-423e10b00a4b" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_9ecc0236-732d-475c-9018-d568fa8520ae" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityAddressCityOrTown_9ecc0236-732d-475c-9018-d568fa8520ae" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_2d07d4be-1483-4273-abfe-58cff70004f0" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityAddressStateOrProvince_2d07d4be-1483-4273-abfe-58cff70004f0" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_cc732eff-40e5-43a2-b788-6404028a1995" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityAddressPostalZipCode_cc732eff-40e5-43a2-b788-6404028a1995" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_471fbecd-8227-42c2-932e-b20704358d29" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_CityAreaCode_471fbecd-8227-42c2-932e-b20704358d29" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_00b874d6-c074-4f19-9e49-fe976460f97a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_LocalPhoneNumber_00b874d6-c074-4f19-9e49-fe976460f97a" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_30d5ccaf-85dc-4250-8831-86f972379867" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_Security12bTitle_30d5ccaf-85dc-4250-8831-86f972379867" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_4fe015f5-3b3d-4c59-a9c5-6cac780a9c62" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_TradingSymbol_4fe015f5-3b3d-4c59-a9c5-6cac780a9c62" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_51fac5bc-c801-4e68-a8aa-1f530551e9e8" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_SecurityExchangeName_51fac5bc-c801-4e68-a8aa-1f530551e9e8" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_da809c1d-f7f5-40b5-80c0-0e7d0db1a268" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityCurrentReportingStatus_da809c1d-f7f5-40b5-80c0-0e7d0db1a268" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_fbf9141e-10f4-4c82-8843-8197330c2760" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityInteractiveDataCurrent_fbf9141e-10f4-4c82-8843-8197330c2760" xlink:type="arc" order="17"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_291b8d2b-1493-483e-ad25-f228384af5f6" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityFilerCategory_291b8d2b-1493-483e-ad25-f228384af5f6" xlink:type="arc" order="18"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_51ba3e0e-8980-42b7-b209-5ccf7a0e607b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntitySmallBusiness_51ba3e0e-8980-42b7-b209-5ccf7a0e607b" xlink:type="arc" order="19"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_482ed6ba-3468-4f41-99e3-d65cb39599c3" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityEmergingGrowthCompany_482ed6ba-3468-4f41-99e3-d65cb39599c3" xlink:type="arc" order="20"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_54172ed4-0869-49fc-ac4a-a22d5715db1a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityShellCompany"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityShellCompany_54172ed4-0869-49fc-ac4a-a22d5715db1a" xlink:type="arc" order="21"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_82ac6a64-bea1-468d-81d0-e72ac48aaba5" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_82ac6a64-bea1-468d-81d0-e72ac48aaba5" xlink:type="arc" order="22"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_8b1f8ad1-c2bd-4dae-9802-3e401bf34e07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_8b1f8ad1-c2bd-4dae-9802-3e401bf34e07" xlink:type="arc" order="23"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_ed9d41e0-6c77-4e53-8012-9fb5fde6a2a2" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitiesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_cd9f96fa-ba1a-44a6-b1f8-6d3ad406b74f" xlink:to="loc_dei_EntitiesTable_ed9d41e0-6c77-4e53-8012-9fb5fde6a2a2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_9fff0a11-1bb1-4d32-9b2d-fd147078da3f" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_ed9d41e0-6c77-4e53-8012-9fb5fde6a2a2" xlink:to="loc_dei_LegalEntityAxis_9fff0a11-1bb1-4d32-9b2d-fd147078da3f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9fff0a11-1bb1-4d32-9b2d-fd147078da3f_default" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_9fff0a11-1bb1-4d32-9b2d-fd147078da3f" xlink:to="loc_dei_EntityDomain_9fff0a11-1bb1-4d32-9b2d-fd147078da3f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9e25e0f9-516e-4711-8070-ebd5c8375f97" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_9fff0a11-1bb1-4d32-9b2d-fd147078da3f" xlink:to="loc_dei_EntityDomain_9e25e0f9-516e-4711-8070-ebd5c8375f97" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealogyGroupLLCMember_946c813c-640e-406c-a68e-9845ffa7e91e" xlink:href="rlgy-20190930.xsd#rlgy_RealogyGroupLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9e25e0f9-516e-4711-8070-ebd5c8375f97" xlink:to="loc_rlgy_RealogyGroupLLCMember_946c813c-640e-406c-a68e-9845ffa7e91e" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/CoverPageandDEIDocumentandEntityInformation" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CoverPageandDEIDocumentandEntityInformation"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CoverPageandDEIDocumentandEntityInformation" xlink:type="extended" id="i125e68c7998d4cc583342ae075590f77_7e3b74b9-4061-4a3c-b7e6-c238629b4885">
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_725b4ef1-13aa-4436-b5b7-c23f3bca37fa" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_EntityCentralIndexKey_725b4ef1-13aa-4436-b5b7-c23f3bca37fa" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_e9fb7ab7-1e1f-40e6-996b-61eb495cc2d3" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CurrentFiscalYearEndDate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_CurrentFiscalYearEndDate_e9fb7ab7-1e1f-40e6-996b-61eb495cc2d3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_2ddaa923-e970-418b-ba8b-07829309cd70" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalYearFocus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_DocumentFiscalYearFocus_2ddaa923-e970-418b-ba8b-07829309cd70" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_996875e7-b11a-4ed1-bd82-b5eeeff8f6cf" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_DocumentFiscalPeriodFocus_996875e7-b11a-4ed1-bd82-b5eeeff8f6cf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_ea97ee45-e901-4f21-991c-b5347b1b131b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_AmendmentFlag_ea97ee45-e901-4f21-991c-b5347b1b131b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_062f07c9-43ce-43d3-9669-fb2d4ee6f759" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_EntityIncorporationStateCountryCode_062f07c9-43ce-43d3-9669-fb2d4ee6f759" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_1c928e75-0dc1-4788-99a3-6238f2d99a58" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_f37eb5c6-5054-4111-b708-7ceeb190f976" xlink:to="loc_dei_DocumentInformationTable_1c928e75-0dc1-4788-99a3-6238f2d99a58" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_2def1aeb-9fea-4e87-871b-53ebe5f92781" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_1c928e75-0dc1-4788-99a3-6238f2d99a58" xlink:to="loc_dei_LegalEntityAxis_2def1aeb-9fea-4e87-871b-53ebe5f92781" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_2def1aeb-9fea-4e87-871b-53ebe5f92781_default" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_2def1aeb-9fea-4e87-871b-53ebe5f92781" xlink:to="loc_dei_EntityDomain_2def1aeb-9fea-4e87-871b-53ebe5f92781_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_c403f9f2-e32b-49d7-99e1-71b539639ee9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_2def1aeb-9fea-4e87-871b-53ebe5f92781" xlink:to="loc_dei_EntityDomain_c403f9f2-e32b-49d7-99e1-71b539639ee9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealogyGroupLLCMember_657bf1c9-c9d0-4a94-ab5b-dadc656048d0" xlink:href="rlgy-20190930.xsd#rlgy_RealogyGroupLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c403f9f2-e32b-49d7-99e1-71b539639ee9" xlink:to="loc_rlgy_RealogyGroupLLCMember_657bf1c9-c9d0-4a94-ab5b-dadc656048d0" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CondensedConsolidatedStatementsofOperations"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="extended" id="if94b4f5ad1074f5293a77c5368323915_257b8849-2267-451c-bd92-3b25ce9bee32">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_02f7e815-99a8-4bc3-b821-4607401968ca" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_fb2f7dc4-f6b8-4c58-82da-aa1ace1202e8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02f7e815-99a8-4bc3-b821-4607401968ca" xlink:to="loc_us-gaap_RevenuesAbstract_fb2f7dc4-f6b8-4c58-82da-aa1ace1202e8" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_7c577841-30b9-465f-be0c-825796fec333" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_fb2f7dc4-f6b8-4c58-82da-aa1ace1202e8" xlink:to="loc_us-gaap_Revenues_7c577841-30b9-465f-be0c-825796fec333" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpensesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02f7e815-99a8-4bc3-b821-4607401968ca" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesCommissionsAndFees_cf805324-13c5-4496-8306-0b6ace84ec50" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesCommissionsAndFees"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_SalesCommissionsAndFees_cf805324-13c5-4496-8306-0b6ace84ec50" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_c3e26190-8714-4af2-bb52-5d396ad3008c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCostAndExpenseOperating"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_c3e26190-8714-4af2-bb52-5d396ad3008c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingExpense_8e0ab9cb-0073-4fbd-ad7f-19428080b09e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MarketingExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_MarketingExpense_8e0ab9cb-0073-4fbd-ad7f-19428080b09e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_dc922a88-a339-4f64-bcfa-63e878b16c8e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_dc922a88-a339-4f64-bcfa-63e878b16c8e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FormerParentLegacyCostsBenefitsNet_3801e211-de3c-4432-9acb-e32533a26d4c" xlink:href="rlgy-20190930.xsd#rlgy_FormerParentLegacyCostsBenefitsNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_rlgy_FormerParentLegacyCostsBenefitsNet_3801e211-de3c-4432-9acb-e32533a26d4c" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_56e2cec4-7f6d-4916-955f-7adbf2c06adf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_RestructuringCharges_56e2cec4-7f6d-4916-955f-7adbf2c06adf" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_901057ae-b502-4267-894a-c262c9359b63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_AssetImpairmentCharges_901057ae-b502-4267-894a-c262c9359b63" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_8a248fcb-56b6-43da-9c36-cfaf6154247b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_DepreciationAndAmortization_8a248fcb-56b6-43da-9c36-cfaf6154247b" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_28f86d67-952a-431b-ba5e-7c06a0e40f35" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_InterestExpense_28f86d67-952a-431b-ba5e-7c06a0e40f35" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_142f57ab-05fd-40dc-b9b8-6bf8a96f9a66" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_142f57ab-05fd-40dc-b9b8-6bf8a96f9a66" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CostsAndExpensesIncludingInterestAndOtherIncome_3e4d1893-f30a-4905-8e62-aef15dcef911" xlink:href="rlgy-20190930.xsd#rlgy_CostsAndExpensesIncludingInterestAndOtherIncome"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_497935d3-a7e8-4384-b13b-b59387fe8884" xlink:to="loc_rlgy_CostsAndExpensesIncludingInterestAndOtherIncome_3e4d1893-f30a-4905-8e62-aef15dcef911" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_41d5d44c-d0df-45c2-9765-4d4b5e42c7a5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_02f7e815-99a8-4bc3-b821-4607401968ca" xlink:to="loc_us-gaap_StatementTable_41d5d44c-d0df-45c2-9765-4d4b5e42c7a5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_cf59c664-51e7-42d2-9c5a-14ed032de894" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_41d5d44c-d0df-45c2-9765-4d4b5e42c7a5" xlink:to="loc_srt_ProductOrServiceAxis_cf59c664-51e7-42d2-9c5a-14ed032de894" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_cf59c664-51e7-42d2-9c5a-14ed032de894_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_cf59c664-51e7-42d2-9c5a-14ed032de894" xlink:to="loc_srt_ProductsAndServicesDomain_cf59c664-51e7-42d2-9c5a-14ed032de894_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_cf59c664-51e7-42d2-9c5a-14ed032de894" xlink:to="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_GrossCommissionIncomeMember_685b31bf-9951-4b8c-9f5e-58d89de37de0" xlink:href="rlgy-20190930.xsd#rlgy_GrossCommissionIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:to="loc_rlgy_GrossCommissionIncomeMember_685b31bf-9951-4b8c-9f5e-58d89de37de0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_ca32dc86-83de-4fb9-b58b-1b3cec0ebefd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ServiceMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:to="loc_us-gaap_ServiceMember_ca32dc86-83de-4fb9-b58b-1b3cec0ebefd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseMember_c1359de7-0b6b-4a08-b66f-6a522d782b7a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FranchiseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:to="loc_us-gaap_FranchiseMember_c1359de7-0b6b-4a08-b66f-6a522d782b7a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceOtherMember_fc369e5f-5583-4e5e-ae5a-775e94fd167c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ServiceOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_5d73b29b-6785-4f5d-87e6-1fbb37c5b355" xlink:to="loc_us-gaap_ServiceOtherMember_fc369e5f-5583-4e5e-ae5a-775e94fd167c" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeLoss" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CondensedConsolidatedStatementsofComprehensiveIncomeLoss"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeLoss" xlink:type="extended" id="i01a1a0a3775c4f93b1dcef061638ed11_d56dc6dc-6c5e-4d6c-a664-966a519ad915"/>
<link:roleRef roleURI="http://www.realogy.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CondensedConsolidatedBalanceSheets"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended" id="i63182a5cdc9c4bc580d73e82eee54b30_d20a87d4-07d9-4901-a927-75038d4fef1e"/>
<link:roleRef roleURI="http://www.realogy.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CondensedConsolidatedStatementsofCashFlows"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended" id="idc4da479d0994027a8f2463283438fe4_d1c375e6-3efe-403c-a78c-6bccda99b94e">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_401ed68e-df83-4719-b5b3-62195fbf05ab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_931b139d-013e-4d08-a974-12d2cd0a1a86" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_401ed68e-df83-4719-b5b3-62195fbf05ab" xlink:to="loc_us-gaap_StatementTable_931b139d-013e-4d08-a974-12d2cd0a1a86" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_0f1024ad-ebf0-41e8-a820-34829b3d5b39" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_931b139d-013e-4d08-a974-12d2cd0a1a86" xlink:to="loc_srt_StatementScenarioAxis_0f1024ad-ebf0-41e8-a820-34829b3d5b39" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_0f1024ad-ebf0-41e8-a820-34829b3d5b39_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_0f1024ad-ebf0-41e8-a820-34829b3d5b39" xlink:to="loc_srt_ScenarioUnspecifiedDomain_0f1024ad-ebf0-41e8-a820-34829b3d5b39_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_c566a985-abd9-47f0-87a5-6d881b1affd5" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_0f1024ad-ebf0-41e8-a820-34829b3d5b39" xlink:to="loc_srt_ScenarioUnspecifiedDomain_c566a985-abd9-47f0-87a5-6d881b1affd5" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentation" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentation"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentation" xlink:type="extended" id="i0379bfe3796941dc9039b6fe4a3d8123_9f2ebfa8-ce59-49b2-8294-0696fb60714b"/>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationBasisofPresentationPolicies" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationBasisofPresentationPolicies"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationBasisofPresentationPolicies" xlink:type="extended" id="i556258f6d68a4e6dafe3c713177fd2ee_a6303272-5d0e-459a-afc1-93639ca98d9f"/>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationTables" xlink:type="extended" id="i66409877db214649befabcb874056037_7c285d84-330e-4a6e-8a97-f54278d45ee8"/>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationFinancialInstrumentsFairValueMeasurementsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationFinancialInstrumentsFairValueMeasurementsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationFinancialInstrumentsFairValueMeasurementsDetails" xlink:type="extended" id="i82a6c7d1c3a94908b63274b58b2e1e68_fdc8255b-4a24-46dc-a846-7abdcda7d8f4">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_0763c72e-6849-4afd-aafc-aae592a0d7ba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_0763c72e-6849-4afd-aafc-aae592a0d7ba" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_4c5f1876-732a-4b03-90ca-d0122b8313d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_us-gaap_DerivativeAssets_4c5f1876-732a-4b03-90ca-d0122b8313d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_6df4d603-4e8c-4575-a657-58cc909afee4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_us-gaap_DerivativeLiabilities_6df4d603-4e8c-4575-a657-58cc909afee4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesFairValueDisclosure_9b416491-7589-4f39-9063-c566d4172142" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_us-gaap_OtherLiabilitiesFairValueDisclosure_9b416491-7589-4f39-9063-c566d4172142" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:href="rlgy-20190930.xsd#rlgy_FairValueLiabilitiesRollforwardRollForward"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_b0d3d1a8-f68a-4577-b05b-1b7d90e14714" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_b0d3d1a8-f68a-4577-b05b-1b7d90e14714" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_48a1f7d5-7663-4858-950b-a9cea2f1f5ba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_48a1f7d5-7663-4858-950b-a9cea2f1f5ba" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_682c5611-671c-41c0-bf67-4e1c6ad9bc3b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_682c5611-671c-41c0-bf67-4e1c6ad9bc3b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_e1d42b69-ff61-4902-b589-8667df50b407" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FairValueLiabilitiesRollforwardRollForward_4ab24914-7be8-4745-a9b1-65a8a13d509c" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_e1d42b69-ff61-4902-b589-8667df50b407" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_8980ed09-fa14-4222-9234-2dab3d1e1acc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9c1f498a-256c-46ff-99ef-b72813675155" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_5e8c7751-c1a7-480c-856a-d3759806fbf5" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9c1f498a-256c-46ff-99ef-b72813675155" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9c1f498a-256c-46ff-99ef-b72813675155" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_2012ba7f-3dc1-493a-add7-3d9d5022b9d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_75c9cff2-4c41-4bc5-b9bf-cdc3b9215c4f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_2012ba7f-3dc1-493a-add7-3d9d5022b9d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_7f7b825f-a0bb-4646-bf30-d4fbfcb75c69" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_2012ba7f-3dc1-493a-add7-3d9d5022b9d9" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_7f7b825f-a0bb-4646-bf30-d4fbfcb75c69" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_a01eb475-777d-4422-8b0b-6fad31c85544" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9c1f498a-256c-46ff-99ef-b72813675155" xlink:to="loc_us-gaap_FinancialInstrumentAxis_a01eb475-777d-4422-8b0b-6fad31c85544" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a01eb475-777d-4422-8b0b-6fad31c85544_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_a01eb475-777d-4422-8b0b-6fad31c85544" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a01eb475-777d-4422-8b0b-6fad31c85544_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cf7e348c-8134-4159-b80d-1cf32ce8c578" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_a01eb475-777d-4422-8b0b-6fad31c85544" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cf7e348c-8134-4159-b80d-1cf32ce8c578" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DeferredCompensationPlanAssetsMember_7214733b-0c27-4162-89fa-0c0c54a7fff2" xlink:href="rlgy-20190930.xsd#rlgy_DeferredCompensationPlanAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cf7e348c-8134-4159-b80d-1cf32ce8c578" xlink:to="loc_rlgy_DeferredCompensationPlanAssetsMember_7214733b-0c27-4162-89fa-0c0c54a7fff2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_038bda95-9aea-400f-97a1-c7ff16706f04" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cf7e348c-8134-4159-b80d-1cf32ce8c578" xlink:to="loc_us-gaap_InterestRateSwapMember_038bda95-9aea-400f-97a1-c7ff16706f04" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ContingentConsiderationforAcquisitionsMember_1bafc9a3-c76f-41b7-8dbd-39fd88bc4b65" xlink:href="rlgy-20190930.xsd#rlgy_ContingentConsiderationforAcquisitionsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cf7e348c-8134-4159-b80d-1cf32ce8c578" xlink:to="loc_rlgy_ContingentConsiderationforAcquisitionsMember_1bafc9a3-c76f-41b7-8dbd-39fd88bc4b65" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_bca563de-907d-4130-9714-1fac03c4cf5f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9c1f498a-256c-46ff-99ef-b72813675155" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_bca563de-907d-4130-9714-1fac03c4cf5f" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_bca563de-907d-4130-9714-1fac03c4cf5f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_bca563de-907d-4130-9714-1fac03c4cf5f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_bca563de-907d-4130-9714-1fac03c4cf5f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f64376e6-5555-4ca5-9ead-85ed061ac68b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_bca563de-907d-4130-9714-1fac03c4cf5f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f64376e6-5555-4ca5-9ead-85ed061ac68b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_48273486-d798-4e04-b89c-dc5c61df9d63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f64376e6-5555-4ca5-9ead-85ed061ac68b" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_48273486-d798-4e04-b89c-dc5c61df9d63" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_4c9ce512-7563-4f03-b76b-cfe523ad42a8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f64376e6-5555-4ca5-9ead-85ed061ac68b" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_4c9ce512-7563-4f03-b76b-cfe523ad42a8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_5af93c80-91d5-4cb1-8811-b52e7e18c25f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f64376e6-5555-4ca5-9ead-85ed061ac68b" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_5af93c80-91d5-4cb1-8811-b52e7e18c25f" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationFinancialInstrumentsFairValueIndebtednessTableDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationFinancialInstrumentsFairValueIndebtednessTableDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationFinancialInstrumentsFairValueIndebtednessTableDetails" xlink:type="extended" id="icb3964e02fcd4e0885bfca4a5fee9c81_103df15e-7693-4afe-abe0-a19468a29db5">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_b4b20dea-49b2-48b9-a9db-48028f0d3b68" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_LineOfCredit_b4b20dea-49b2-48b9-a9db-48028f0d3b68" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_134383c1-70ee-40a7-9680-97d074ee2a9b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_134383c1-70ee-40a7-9680-97d074ee2a9b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_d47b6ef0-e15b-4c39-bc03-00df1308bf97" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSecuredFinancings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_OtherSecuredFinancings_d47b6ef0-e15b-4c39-bc03-00df1308bf97" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LinesOfCreditFairValueDisclosure_e09628bb-6bbd-4d1a-9b95-6efb1fe8b01d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LinesOfCreditFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_LinesOfCreditFairValueDisclosure_e09628bb-6bbd-4d1a-9b95-6efb1fe8b01d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_ebc8d671-7031-4513-994c-d83bc146c83b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_LongTermDebtFairValue_ebc8d671-7031-4513-994c-d83bc146c83b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Othersecuredfinancingfairvalue_55f9e0ff-61b5-430d-9c8f-289e16aef403" xlink:href="rlgy-20190930.xsd#rlgy_Othersecuredfinancingfairvalue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_rlgy_Othersecuredfinancingfairvalue_55f9e0ff-61b5-430d-9c8f-289e16aef403" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_29551f0e-8bc1-467e-8e8a-864fe2a18ccf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_91a7c92b-0353-44cf-8784-fe8679baca61" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_29551f0e-8bc1-467e-8e8a-864fe2a18ccf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_6d2ceaa1-7abc-4c44-9c48-4013a5027150" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_29551f0e-8bc1-467e-8e8a-864fe2a18ccf" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_6d2ceaa1-7abc-4c44-9c48-4013a5027150" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_6d2ceaa1-7abc-4c44-9c48-4013a5027150_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_6d2ceaa1-7abc-4c44-9c48-4013a5027150" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_6d2ceaa1-7abc-4c44-9c48-4013a5027150_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_1ebcff2f-e5c7-4796-9465-69d73db9174d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_6d2ceaa1-7abc-4c44-9c48-4013a5027150" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_1ebcff2f-e5c7-4796-9465-69d73db9174d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_c11251f0-bead-4ea5-afba-bbad79389264" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_1ebcff2f-e5c7-4796-9465-69d73db9174d" xlink:to="loc_us-gaap_LineOfCreditMember_c11251f0-bead-4ea5-afba-bbad79389264" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizationobligationMember_93871436-3773-4a45-b16d-ed415e746f1a" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizationobligationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_1ebcff2f-e5c7-4796-9465-69d73db9174d" xlink:to="loc_rlgy_SecuritizationobligationMember_93871436-3773-4a45-b16d-ed415e746f1a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_29551f0e-8bc1-467e-8e8a-864fe2a18ccf" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9b43847d-4b67-463a-81f5-0bfc452c0f11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_10c1e3f5-6635-4931-98dc-dd6c3bea5b1c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9b43847d-4b67-463a-81f5-0bfc452c0f11" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_1c2effd4-d820-497b-b810-53c6f9fa4d10" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_9b43847d-4b67-463a-81f5-0bfc452c0f11" xlink:to="loc_us-gaap_SecuredDebtMember_1c2effd4-d820-497b-b810-53c6f9fa4d10" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_24591232-c6fd-4f18-adfc-964435f7078a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_9b43847d-4b67-463a-81f5-0bfc452c0f11" xlink:to="loc_us-gaap_SeniorNotesMember_24591232-c6fd-4f18-adfc-964435f7078a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_f3381e60-8411-461d-869b-a56b732bdcc2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_29551f0e-8bc1-467e-8e8a-864fe2a18ccf" xlink:to="loc_us-gaap_DebtInstrumentAxis_f3381e60-8411-461d-869b-a56b732bdcc2" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f3381e60-8411-461d-869b-a56b732bdcc2_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_f3381e60-8411-461d-869b-a56b732bdcc2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f3381e60-8411-461d-869b-a56b732bdcc2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_f3381e60-8411-461d-869b-a56b732bdcc2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_71e985f6-1154-48c5-880c-21ec10804379" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_71e985f6-1154-48c5-880c-21ec10804379" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanBFacilityMember_470e6b05-480a-4b46-a866-09ae3575a72a" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanBFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_TermLoanBFacilityMember_470e6b05-480a-4b46-a866-09ae3575a72a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAMember_250e0951-ec6b-42ca-a1bd-471955efeb5e" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_TermLoanAMember_250e0951-ec6b-42ca-a1bd-471955efeb5e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.50SeniorNotesMember_04fc19fe-1bc1-40f9-9028-efb1b70965e7" xlink:href="rlgy-20190930.xsd#rlgy_A4.50SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_A4.50SeniorNotesMember_04fc19fe-1bc1-40f9-9028-efb1b70965e7" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A5.25SeniorNotesMember_4c8d1080-cdbf-4ffa-bb04-12aa1ab8f3e6" xlink:href="rlgy-20190930.xsd#rlgy_A5.25SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_A5.25SeniorNotesMember_4c8d1080-cdbf-4ffa-bb04-12aa1ab8f3e6" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.875SeniorNotesMember_3807676c-2c7a-462d-82ad-b1448d274b82" xlink:href="rlgy-20190930.xsd#rlgy_A4.875SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_A4.875SeniorNotesMember_3807676c-2c7a-462d-82ad-b1448d274b82" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A9.375SeniorNotesMember_7f6f7074-8005-49a0-a64b-77af40dac8f7" xlink:href="rlgy-20190930.xsd#rlgy_A9.375SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_A9.375SeniorNotesMember_7f6f7074-8005-49a0-a64b-77af40dac8f7" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizationobligationMember_346fe2ef-fe76-4938-a6f7-34ba6c887f8a" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizationobligationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7d71d9d9-a3ed-4496-bd5b-c4e0c8b28709" xlink:to="loc_rlgy_SecuritizationobligationMember_346fe2ef-fe76-4938-a6f7-34ba6c887f8a" xlink:type="arc" order="7"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationEquityMethodInvestmentsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationEquityMethodInvestmentsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationEquityMethodInvestmentsDetails" xlink:type="extended" id="i32408530b7db4e4f80bb586c9506d6e6_375fe1c0-cda7-4665-8031-b64427d1b319">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_f9ac738b-6241-4ffb-9c76-b3d1457b2b2a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:to="loc_us-gaap_EquityMethodInvestments_f9ac738b-6241-4ffb-9c76-b3d1457b2b2a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_c0b164c1-e85b-4f39-82c6-42a45504da19" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_c0b164c1-e85b-4f39-82c6-42a45504da19" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDividendsReceived_7a735c88-8096-414e-af64-63c6c5856a89" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromDividendsReceived"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:to="loc_us-gaap_ProceedsFromDividendsReceived_7a735c88-8096-414e-af64-63c6c5856a89" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_4063b2dd-353c-454e-820b-79c922bb09ae" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:to="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_4063b2dd-353c-454e-820b-79c922bb09ae" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_4605d99a-ca76-409e-bc24-3af96a5d9dd8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_dce84514-e081-477d-9ebf-7442d5c4640f" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_4605d99a-ca76-409e-bc24-3af96a5d9dd8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_b75fbe66-d084-4490-9341-5072c0187ea7" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_4605d99a-ca76-409e-bc24-3af96a5d9dd8" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_b75fbe66-d084-4490-9341-5072c0187ea7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_b75fbe66-d084-4490-9341-5072c0187ea7_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_b75fbe66-d084-4490-9341-5072c0187ea7" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_b75fbe66-d084-4490-9341-5072c0187ea7_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_f94cb426-6c5a-4d59-8fb7-dcf6dc558994" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_b75fbe66-d084-4490-9341-5072c0187ea7" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_f94cb426-6c5a-4d59-8fb7-dcf6dc558994" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_GuaranteedRateAffinityMember_67cea89e-ab65-4b6a-9fc6-900f4ec4e469" xlink:href="rlgy-20190930.xsd#rlgy_GuaranteedRateAffinityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_f94cb426-6c5a-4d59-8fb7-dcf6dc558994" xlink:to="loc_rlgy_GuaranteedRateAffinityMember_67cea89e-ab65-4b6a-9fc6-900f4ec4e469" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationIncomeTaxesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationIncomeTaxesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationIncomeTaxesDetails" xlink:type="extended" id="icdd4f54d6bfa4e7281cbb7ced5615f49_75640e8c-6332-4700-89b8-2845e2029922"/>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationDerivativeInstrumentsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationDerivativeInstrumentsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationDerivativeInstrumentsDetails" xlink:type="extended" id="i2b41eaaffb0449fb962f3907d7ce36ed_08cf96ab-1151-4ecc-a28a-92fb6fcdef13">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_e9f9594a-5d0d-422d-a4c6-bc675b367cf1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_e9f9594a-5d0d-422d-a4c6-bc675b367cf1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_222c3973-1f5a-4bd3-b451-0634fcdc22f1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeNotionalAmount_222c3973-1f5a-4bd3-b451-0634fcdc22f1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_31ae1065-e8b9-44d4-b034-76f95fd2437c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_31ae1065-e8b9-44d4-b034-76f95fd2437c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_073b81cc-4b63-4710-a992-56c9a4e1ee20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_073b81cc-4b63-4710-a992-56c9a4e1ee20" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_8bcd2bd2-b05c-4792-925f-de507e76e62c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_8bcd2bd2-b05c-4792-925f-de507e76e62c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_07bc392a-2940-4afb-9919-61d4664fde49" xlink:to="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_923df54f-0706-4447-b1d1-22f204e8e209" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_923df54f-0706-4447-b1d1-22f204e8e209" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_923df54f-0706-4447-b1d1-22f204e8e209_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_923df54f-0706-4447-b1d1-22f204e8e209" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_923df54f-0706-4447-b1d1-22f204e8e209_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_7c23759b-e92d-405c-a696-d034d31d39e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_923df54f-0706-4447-b1d1-22f204e8e209" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_7c23759b-e92d-405c-a696-d034d31d39e9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_44667140-5ff3-4434-b61e-af4315b1c0c8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_7c23759b-e92d-405c-a696-d034d31d39e9" xlink:to="loc_us-gaap_ForeignExchangeContractMember_44667140-5ff3-4434-b61e-af4315b1c0c8" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_c84950b3-dc9c-4cc5-a1ed-1176a078647a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_7c23759b-e92d-405c-a696-d034d31d39e9" xlink:to="loc_us-gaap_InterestRateSwapMember_c84950b3-dc9c-4cc5-a1ed-1176a078647a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_4448a93d-d224-4f2a-8806-67207722bd28" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_srt_RangeAxis_4448a93d-d224-4f2a-8806-67207722bd28" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4448a93d-d224-4f2a-8806-67207722bd28_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_4448a93d-d224-4f2a-8806-67207722bd28" xlink:to="loc_srt_RangeMember_4448a93d-d224-4f2a-8806-67207722bd28_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8362f42d-0dd9-45a5-97f0-b5fb3f066436" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_4448a93d-d224-4f2a-8806-67207722bd28" xlink:to="loc_srt_RangeMember_8362f42d-0dd9-45a5-97f0-b5fb3f066436" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_0234abf9-8244-4b87-b4a0-ef5b7467b6d2" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8362f42d-0dd9-45a5-97f0-b5fb3f066436" xlink:to="loc_srt_MaximumMember_0234abf9-8244-4b87-b4a0-ef5b7467b6d2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SwapCommencementDateAxis_b47d6492-1209-4e55-ad0f-50b5f877dfab" xlink:href="rlgy-20190930.xsd#rlgy_SwapCommencementDateAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_rlgy_SwapCommencementDateAxis_b47d6492-1209-4e55-ad0f-50b5f877dfab" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SwapCommencementDateDomain_b47d6492-1209-4e55-ad0f-50b5f877dfab_default" xlink:href="rlgy-20190930.xsd#rlgy_SwapCommencementDateDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_SwapCommencementDateAxis_b47d6492-1209-4e55-ad0f-50b5f877dfab" xlink:to="loc_rlgy_SwapCommencementDateDomain_b47d6492-1209-4e55-ad0f-50b5f877dfab_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:href="rlgy-20190930.xsd#rlgy_SwapCommencementDateDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_SwapCommencementDateAxis_b47d6492-1209-4e55-ad0f-50b5f877dfab" xlink:to="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_August2015Member_264282d8-3e75-4bbc-a956-2c3f60951d0f" xlink:href="rlgy-20190930.xsd#rlgy_August2015Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:to="loc_rlgy_August2015Member_264282d8-3e75-4bbc-a956-2c3f60951d0f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_November2017Member_7c5c62a5-7bb0-46d9-b1a8-026b192fd168" xlink:href="rlgy-20190930.xsd#rlgy_November2017Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:to="loc_rlgy_November2017Member_7c5c62a5-7bb0-46d9-b1a8-026b192fd168" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_August2020Member_ef088629-1c3f-45f8-8cf2-c82f4952a934" xlink:href="rlgy-20190930.xsd#rlgy_August2020Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:to="loc_rlgy_August2020Member_ef088629-1c3f-45f8-8cf2-c82f4952a934" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_November2022Member_366852cc-6216-4611-9eb7-93d64e2c6668" xlink:href="rlgy-20190930.xsd#rlgy_November2022Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SwapCommencementDateDomain_5a24ba84-c653-4fe4-bf0a-488512e485e0" xlink:to="loc_rlgy_November2022Member_366852cc-6216-4611-9eb7-93d64e2c6668" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_35983359-ca9c-4a46-835d-15b38561adfc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_us-gaap_HedgingDesignationAxis_35983359-ca9c-4a46-835d-15b38561adfc" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_35983359-ca9c-4a46-835d-15b38561adfc_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_35983359-ca9c-4a46-835d-15b38561adfc" xlink:to="loc_us-gaap_HedgingDesignationDomain_35983359-ca9c-4a46-835d-15b38561adfc_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_67312ff0-d7df-4104-98aa-81aac8e99ed5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_35983359-ca9c-4a46-835d-15b38561adfc" xlink:to="loc_us-gaap_HedgingDesignationDomain_67312ff0-d7df-4104-98aa-81aac8e99ed5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_e49fa72c-785c-43d9-9e37-c05fe2419412" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NondesignatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_67312ff0-d7df-4104-98aa-81aac8e99ed5" xlink:to="loc_us-gaap_NondesignatedMember_e49fa72c-785c-43d9-9e37-c05fe2419412" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_c6b45786-cb4d-4148-a75a-46968e4f07a9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_c6b45786-cb4d-4148-a75a-46968e4f07a9" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_c6b45786-cb4d-4148-a75a-46968e4f07a9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_c6b45786-cb4d-4148-a75a-46968e4f07a9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_c6b45786-cb4d-4148-a75a-46968e4f07a9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_a86dca16-ea8f-4b28-861c-89483620bd0d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_c6b45786-cb4d-4148-a75a-46968e4f07a9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_a86dca16-ea8f-4b28-861c-89483620bd0d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_9918d7a8-9aa6-4ea8-9890-be25512f6dc7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_a86dca16-ea8f-4b28-861c-89483620bd0d" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_9918d7a8-9aa6-4ea8-9890-be25512f6dc7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesMember_3256bcb0-bb09-4e91-a2ad-5bf430b715b3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_a86dca16-ea8f-4b28-861c-89483620bd0d" xlink:to="loc_us-gaap_OtherLiabilitiesMember_3256bcb0-bb09-4e91-a2ad-5bf430b715b3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_696b51e1-d773-457f-bb5a-422d33afedd4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_f3dae298-2182-4ca5-b240-44f8f986a1ef" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_696b51e1-d773-457f-bb5a-422d33afedd4" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_696b51e1-d773-457f-bb5a-422d33afedd4_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_696b51e1-d773-457f-bb5a-422d33afedd4" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_696b51e1-d773-457f-bb5a-422d33afedd4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_cbbbdba2-1046-4516-a5ff-fd90b82ef846" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_696b51e1-d773-457f-bb5a-422d33afedd4" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_cbbbdba2-1046-4516-a5ff-fd90b82ef846" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_ef206b68-bfcd-4446-ada3-ed7c34214115" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_cbbbdba2-1046-4516-a5ff-fd90b82ef846" xlink:to="loc_us-gaap_InterestExpenseMember_ef206b68-bfcd-4446-ada3-ed7c34214115" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenseMember_8ad1e6b2-8a20-45e1-a9a2-d41ebb45a65e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_cbbbdba2-1046-4516-a5ff-fd90b82ef846" xlink:to="loc_us-gaap_OperatingExpenseMember_8ad1e6b2-8a20-45e1-a9a2-d41ebb45a65e" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationRestrictedCashDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationRestrictedCashDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationRestrictedCashDetails" xlink:type="extended" id="i0acb3f5a06d1431e8ee9a4b23afab7d5_636225a1-7a40-4b8a-b552-322226504fd4"/>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationRevenueRecognitionDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationRevenueRecognitionDisaggregationofRevenueDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationRevenueRecognitionDisaggregationofRevenueDetails" xlink:type="extended" id="i450cf521c2564626a27c15d89955683d_60a1dddd-bfff-4e74-a673-6b08325755df">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_e6810838-fcda-49bd-aab5-2e1556fea1f4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_695ed408-55a6-4388-8c29-2887f01be852" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e6810838-fcda-49bd-aab5-2e1556fea1f4" xlink:to="loc_us-gaap_Revenues_695ed408-55a6-4388-8c29-2887f01be852" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_NewDevelopmentPeriod_4f073529-67a5-47b7-936b-ab9380dbd66b" xlink:href="rlgy-20190930.xsd#rlgy_NewDevelopmentPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e6810838-fcda-49bd-aab5-2e1556fea1f4" xlink:to="loc_rlgy_NewDevelopmentPeriod_4f073529-67a5-47b7-936b-ab9380dbd66b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_85d27938-c3ac-47de-96ad-ed9517ad89e0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e6810838-fcda-49bd-aab5-2e1556fea1f4" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_85d27938-c3ac-47de-96ad-ed9517ad89e0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_c7ebf1ff-bc02-4421-8351-c60b251ae4be" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_85d27938-c3ac-47de-96ad-ed9517ad89e0" xlink:to="loc_srt_RangeAxis_c7ebf1ff-bc02-4421-8351-c60b251ae4be" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c7ebf1ff-bc02-4421-8351-c60b251ae4be_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_c7ebf1ff-bc02-4421-8351-c60b251ae4be" xlink:to="loc_srt_RangeMember_c7ebf1ff-bc02-4421-8351-c60b251ae4be_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ed819618-24d3-477c-8fdd-489873974384" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_c7ebf1ff-bc02-4421-8351-c60b251ae4be" xlink:to="loc_srt_RangeMember_ed819618-24d3-477c-8fdd-489873974384" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_92757359-4686-46a6-987a-4dfb4a07162a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ed819618-24d3-477c-8fdd-489873974384" xlink:to="loc_srt_MinimumMember_92757359-4686-46a6-987a-4dfb4a07162a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_6c339364-bda8-4dc9-b8ed-e7486df29209" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ed819618-24d3-477c-8fdd-489873974384" xlink:to="loc_srt_MaximumMember_6c339364-bda8-4dc9-b8ed-e7486df29209" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_bfe9a385-9af8-42e5-a917-9350f7582a54" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_85d27938-c3ac-47de-96ad-ed9517ad89e0" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_bfe9a385-9af8-42e5-a917-9350f7582a54" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_bfe9a385-9af8-42e5-a917-9350f7582a54_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_bfe9a385-9af8-42e5-a917-9350f7582a54" xlink:to="loc_us-gaap_SegmentDomain_bfe9a385-9af8-42e5-a917-9350f7582a54_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_bfe9a385-9af8-42e5-a917-9350f7582a54" xlink:to="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_bcfc065e-665e-499e-b33c-a46b0b9602bd" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_bcfc065e-665e-499e-b33c-a46b0b9602bd" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_54ed41b5-0cb4-48fd-b7f2-62be1447c4c4" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_54ed41b5-0cb4-48fd-b7f2-62be1447c4c4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_67675592-aba4-4cfb-ba84-5b94ff1888f1" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:to="loc_rlgy_RelocationServicesMember_67675592-aba4-4cfb-ba84-5b94ff1888f1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_be05b6ac-755f-49d2-b111-b3b749cd602e" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_be05b6ac-755f-49d2-b111-b3b749cd602e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember_7210930e-ba6d-4449-bed2-866ecd39d3c7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateAndOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_58f87edd-4de7-40a9-afdb-daf13049755a" xlink:to="loc_us-gaap_CorporateAndOtherMember_7210930e-ba6d-4449-bed2-866ecd39d3c7" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_d9e86ef3-36c2-4999-9e99-863d6a9020c4" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_85d27938-c3ac-47de-96ad-ed9517ad89e0" xlink:to="loc_srt_ProductOrServiceAxis_d9e86ef3-36c2-4999-9e99-863d6a9020c4" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_d9e86ef3-36c2-4999-9e99-863d6a9020c4_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_d9e86ef3-36c2-4999-9e99-863d6a9020c4" xlink:to="loc_srt_ProductsAndServicesDomain_d9e86ef3-36c2-4999-9e99-863d6a9020c4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_d9e86ef3-36c2-4999-9e99-863d6a9020c4" xlink:to="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_GrossCommissionIncomeMember_2cacc1d7-e314-4b7e-b266-412d8103964d" xlink:href="rlgy-20190930.xsd#rlgy_GrossCommissionIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:to="loc_rlgy_GrossCommissionIncomeMember_2cacc1d7-e314-4b7e-b266-412d8103964d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_db95442e-a1e5-404c-9d02-1099b6bb3ee9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ServiceMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:to="loc_us-gaap_ServiceMember_db95442e-a1e5-404c-9d02-1099b6bb3ee9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseMember_207b7a24-b88c-49ac-a9d0-59c7bdd5bdde" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FranchiseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:to="loc_us-gaap_FranchiseMember_207b7a24-b88c-49ac-a9d0-59c7bdd5bdde" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceOtherMember_edf2f86c-20c9-485f-8ac1-a28ac33f552b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ServiceOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_52cf4cae-78f7-4fb4-942e-61ddf10ba282" xlink:to="loc_us-gaap_ServiceOtherMember_edf2f86c-20c9-485f-8ac1-a28ac33f552b" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationRevenueRecognitionDeferredRevenueDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationRevenueRecognitionDeferredRevenueDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationRevenueRecognitionDeferredRevenueDetails" xlink:type="extended" id="i2d17a1652b014fb6b42c36b427d32aed_b953c600-4a55-45fd-878a-22f9a505e2b9">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenue_fe2034d0-709c-4de6-b284-fdf21ce5f7e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_us-gaap_DeferredRevenue_fe2034d0-709c-4de6-b284-fdf21ce5f7e9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueAdditions_5a99cf23-b136-4384-a312-3355f4657def" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueAdditions"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_us-gaap_DeferredRevenueAdditions_5a99cf23-b136-4384-a312-3355f4657def" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueRevenueRecognized1_a58cb561-25b2-4a21-98b5-44dcd7f98bf1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueRevenueRecognized1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_us-gaap_DeferredRevenueRevenueRecognized1_a58cb561-25b2-4a21-98b5-44dcd7f98bf1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_14dfd10a-4203-4ad4-820d-5b1c8c347a55" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_14dfd10a-4203-4ad4-820d-5b1c8c347a55" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_NewDevelopmentPeriod_c3d2a013-ebb3-4697-8894-bbee6d26a2f3" xlink:href="rlgy-20190930.xsd#rlgy_NewDevelopmentPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_rlgy_NewDevelopmentPeriod_c3d2a013-ebb3-4697-8894-bbee6d26a2f3" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AverageLengthofaMove_6cd50d95-55f8-4ac5-995a-ca181860db48" xlink:href="rlgy-20190930.xsd#rlgy_AverageLengthofaMove"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_rlgy_AverageLengthofaMove_6cd50d95-55f8-4ac5-995a-ca181860db48" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueArrangementByTypeTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems_99ccb706-036c-4056-b358-33b856c8ccb0" xlink:to="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementTypeAxis_4ad3d80c-f495-4014-8b23-f628e8ce94fc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueArrangementTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:to="loc_us-gaap_DeferredRevenueArrangementTypeAxis_4ad3d80c-f495-4014-8b23-f628e8ce94fc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementTypeDomain_4ad3d80c-f495-4014-8b23-f628e8ce94fc_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeAxis_4ad3d80c-f495-4014-8b23-f628e8ce94fc" xlink:to="loc_us-gaap_DeferredRevenueArrangementTypeDomain_4ad3d80c-f495-4014-8b23-f628e8ce94fc_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeAxis_4ad3d80c-f495-4014-8b23-f628e8ce94fc" xlink:to="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AreaDevelopmentFeesMember_59f0e527-7f2b-4258-acfc-fb25d2942bf3" xlink:href="rlgy-20190930.xsd#rlgy_AreaDevelopmentFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_AreaDevelopmentFeesMember_59f0e527-7f2b-4258-acfc-fb25d2942bf3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_BrandMarketingFeesMember_eb0940c9-adc6-47ff-82b4-d6421dea5a09" xlink:href="rlgy-20190930.xsd#rlgy_BrandMarketingFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_BrandMarketingFeesMember_eb0940c9-adc6-47ff-82b4-d6421dea5a09" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DeferredIncomeOtherMember_d9b787f4-f2cc-4464-a0c7-def5d77802ce" xlink:href="rlgy-20190930.xsd#rlgy_DeferredIncomeOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_DeferredIncomeOtherMember_d9b787f4-f2cc-4464-a0c7-def5d77802ce" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_NewDevelopmentBusinessMember_19dfcde4-d9d2-4f4d-ab91-7e64bb9b8716" xlink:href="rlgy-20190930.xsd#rlgy_NewDevelopmentBusinessMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_NewDevelopmentBusinessMember_19dfcde4-d9d2-4f4d-ab91-7e64bb9b8716" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_BrokerNetworkFeesMember_bf667cf8-21f7-4299-a060-b9031509a2ac" xlink:href="rlgy-20190930.xsd#rlgy_BrokerNetworkFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_BrokerNetworkFeesMember_bf667cf8-21f7-4299-a060-b9031509a2ac" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OutsourcingManagementFeesMember_9d6595ed-0b8a-4283-bfa0-a9a7b6e15552" xlink:href="rlgy-20190930.xsd#rlgy_OutsourcingManagementFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementTypeDomain_56c1bb60-658b-4cb2-8163-27326a55ec5b" xlink:to="loc_rlgy_OutsourcingManagementFeesMember_9d6595ed-0b8a-4283-bfa0-a9a7b6e15552" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_76eb3b1b-83ec-4684-b158-bd162d25277c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_76eb3b1b-83ec-4684-b158-bd162d25277c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_76eb3b1b-83ec-4684-b158-bd162d25277c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_76eb3b1b-83ec-4684-b158-bd162d25277c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_76eb3b1b-83ec-4684-b158-bd162d25277c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_7cbff30c-d936-49e3-afea-7cbcf29b22d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_76eb3b1b-83ec-4684-b158-bd162d25277c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_7cbff30c-d936-49e3-afea-7cbcf29b22d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InternationalFranchiseRightsMember_38b92c88-77cb-49d0-b671-a4cea44949ac" xlink:href="rlgy-20190930.xsd#rlgy_InternationalFranchiseRightsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_7cbff30c-d936-49e3-afea-7cbcf29b22d9" xlink:to="loc_rlgy_InternationalFranchiseRightsMember_38b92c88-77cb-49d0-b671-a4cea44949ac" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_10d62923-5902-4128-ae11-1a78157e97c8" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:to="loc_srt_RangeAxis_10d62923-5902-4128-ae11-1a78157e97c8" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_10d62923-5902-4128-ae11-1a78157e97c8_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_10d62923-5902-4128-ae11-1a78157e97c8" xlink:to="loc_srt_RangeMember_10d62923-5902-4128-ae11-1a78157e97c8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8bb6c4c5-08f0-4159-b1cd-9b97dd552dc7" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_10d62923-5902-4128-ae11-1a78157e97c8" xlink:to="loc_srt_RangeMember_8bb6c4c5-08f0-4159-b1cd-9b97dd552dc7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_ca317218-236a-4eaa-964c-29bc91c2879c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8bb6c4c5-08f0-4159-b1cd-9b97dd552dc7" xlink:to="loc_srt_MinimumMember_ca317218-236a-4eaa-964c-29bc91c2879c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_8921b29a-c803-4429-8125-a3efb378aa96" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8bb6c4c5-08f0-4159-b1cd-9b97dd552dc7" xlink:to="loc_srt_MaximumMember_8921b29a-c803-4429-8125-a3efb378aa96" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_ce72381b-4d9a-4483-9001-bc0166bc5fea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_8e32117b-cc99-4c83-a06d-044d441875f5" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_ce72381b-4d9a-4483-9001-bc0166bc5fea" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_ce72381b-4d9a-4483-9001-bc0166bc5fea_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_ce72381b-4d9a-4483-9001-bc0166bc5fea" xlink:to="loc_us-gaap_SegmentDomain_ce72381b-4d9a-4483-9001-bc0166bc5fea_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_1215d00b-b565-4b84-93d6-70ace105c16d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_ce72381b-4d9a-4483-9001-bc0166bc5fea" xlink:to="loc_us-gaap_SegmentDomain_1215d00b-b565-4b84-93d6-70ace105c16d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_004c395e-2c57-4b3a-8ea1-90290b5d3a28" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_1215d00b-b565-4b84-93d6-70ace105c16d" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_004c395e-2c57-4b3a-8ea1-90290b5d3a28" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_4a718b7e-f7b1-46c6-84c3-78edd9e2791d" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_1215d00b-b565-4b84-93d6-70ace105c16d" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_4a718b7e-f7b1-46c6-84c3-78edd9e2791d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_b171859c-c601-4c7d-9b0d-31339b7279c4" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_1215d00b-b565-4b84-93d6-70ace105c16d" xlink:to="loc_rlgy_RelocationServicesMember_b171859c-c601-4c7d-9b0d-31339b7279c4" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/BasisOfPresentationRecentlyAdoptedAccountingPronouncements" xlink:type="simple" xlink:href="rlgy-20190930.xsd#BasisOfPresentationRecentlyAdoptedAccountingPronouncements"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/BasisOfPresentationRecentlyAdoptedAccountingPronouncements" xlink:type="extended" id="if2b3951fa30d4362a9ebbb272efbf4bf_5b98d045-bc04-455b-9e32-29730b282d43">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_989d55c8-7ad2-4ca1-993f-9896317bf352" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_989d55c8-7ad2-4ca1-993f-9896317bf352" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_246765e4-b347-4121-bf23-f652747036c6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OtherAssetsCurrent_246765e4-b347-4121-bf23-f652747036c6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_75d84c60-1848-4422-871e-2bd00733ebd3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_AssetsCurrent_75d84c60-1848-4422-871e-2bd00733ebd3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_edea9d5a-2d37-424b-9d72-cba7cc52bf56" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_edea9d5a-2d37-424b-9d72-cba7cc52bf56" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_7460c122-98b6-4956-ad16-512ec4986123" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_7460c122-98b6-4956-ad16-512ec4986123" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_b29cfc25-bdaa-47a3-bd57-098c627b6ad9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_Assets_b29cfc25-bdaa-47a3-bd57-098c627b6ad9" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_a56be9e7-7ae2-485e-b2d5-37952d56ac8c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_a56be9e7-7ae2-485e-b2d5-37952d56ac8c" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_a555d675-dee9-45d7-af67-c12cd2aaaeb4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_a555d675-dee9-45d7-af67-c12cd2aaaeb4" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_1b461757-590c-4025-bc64-b70a04e1adc9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_LiabilitiesCurrent_1b461757-590c-4025-bc64-b70a04e1adc9" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_35759730-c11b-4a88-bb7c-642d8fd73462" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_35759730-c11b-4a88-bb7c-642d8fd73462" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_31ee8de1-e342-4082-a3af-efcfcbf2a76c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_31ee8de1-e342-4082-a3af-efcfcbf2a76c" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_f6e8f8f4-f214-4833-b272-df9748be7315" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_Liabilities_f6e8f8f4-f214-4833-b272-df9748be7315" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_57398021-95cc-48b7-91d6-2dff50246042" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_57398021-95cc-48b7-91d6-2dff50246042" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_33bf37bb-dffd-49aa-8e1e-bdc4fdd9f06b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_33bf37bb-dffd-49aa-8e1e-bdc4fdd9f06b" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_42c85b56-7815-4b1b-975b-bc5b6e729c04" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_42c85b56-7815-4b1b-975b-bc5b6e729c04" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f68f9d6b-c90b-4f20-bbcf-93a29ab31583" xlink:to="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_fbf03259-6fa3-40cd-ad01-d7c25f672737" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_fbf03259-6fa3-40cd-ad01-d7c25f672737" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_fbf03259-6fa3-40cd-ad01-d7c25f672737_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_fbf03259-6fa3-40cd-ad01-d7c25f672737" xlink:to="loc_us-gaap_SegmentDomain_fbf03259-6fa3-40cd-ad01-d7c25f672737_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_fbf03259-6fa3-40cd-ad01-d7c25f672737" xlink:to="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_f8769d99-3e96-47d9-96fd-e37895be0f79" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_f8769d99-3e96-47d9-96fd-e37895be0f79" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember_e7f1d89d-88c6-4b9a-8cd6-86dc4b966de6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateAndOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:to="loc_us-gaap_CorporateAndOtherMember_e7f1d89d-88c6-4b9a-8cd6-86dc4b966de6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_c23d89f8-aea7-46f9-9e70-662846eb8e8b" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_c23d89f8-aea7-46f9-9e70-662846eb8e8b" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_769104e0-52fc-422d-9110-686d73941334" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_b29859d2-1f4c-485f-baf1-b96fba7a130a" xlink:to="loc_rlgy_RelocationServicesMember_769104e0-52fc-422d-9110-686d73941334" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d12eefa0-d301-4027-a058-af017c947e9a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:to="loc_srt_RangeAxis_d12eefa0-d301-4027-a058-af017c947e9a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d12eefa0-d301-4027-a058-af017c947e9a_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d12eefa0-d301-4027-a058-af017c947e9a" xlink:to="loc_srt_RangeMember_d12eefa0-d301-4027-a058-af017c947e9a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_cbe7993f-c1b4-492d-b0b2-0e72164d6e4c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d12eefa0-d301-4027-a058-af017c947e9a" xlink:to="loc_srt_RangeMember_cbe7993f-c1b4-492d-b0b2-0e72164d6e4c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_8382d069-0c3f-47dc-8b44-7e727aa93356" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_cbe7993f-c1b4-492d-b0b2-0e72164d6e4c" xlink:to="loc_srt_MaximumMember_8382d069-0c3f-47dc-8b44-7e727aa93356" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeAxis_03de365a-4d44-4b8c-a5d6-e513bc528fca" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:to="loc_us-gaap_LeaseArrangementTypeAxis_03de365a-4d44-4b8c-a5d6-e513bc528fca" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_03de365a-4d44-4b8c-a5d6-e513bc528fca_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_03de365a-4d44-4b8c-a5d6-e513bc528fca" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_03de365a-4d44-4b8c-a5d6-e513bc528fca_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_169c6332-1849-4db6-b397-032dbb00bbb1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_03de365a-4d44-4b8c-a5d6-e513bc528fca" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_169c6332-1849-4db6-b397-032dbb00bbb1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ShorttermleaseMember_51fb91a4-2efc-4620-8400-95abf4cf9797" xlink:href="rlgy-20190930.xsd#rlgy_ShorttermleaseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_169c6332-1849-4db6-b397-032dbb00bbb1" xlink:to="loc_rlgy_ShorttermleaseMember_51fb91a4-2efc-4620-8400-95abf4cf9797" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_367844a1-1464-4943-838f-f0fa32c6a8c9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_367844a1-1464-4943-838f-f0fa32c6a8c9" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_367844a1-1464-4943-838f-f0fa32c6a8c9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_367844a1-1464-4943-838f-f0fa32c6a8c9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_367844a1-1464-4943-838f-f0fa32c6a8c9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_367844a1-1464-4943-838f-f0fa32c6a8c9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CurrentAssetsMember_384b7a48-08a7-46c5-9fe3-cdeb231b5b37" xlink:href="rlgy-20190930.xsd#rlgy_CurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_CurrentAssetsMember_384b7a48-08a7-46c5-9fe3-cdeb231b5b37" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OperatingLeaseAssetsMember_f835650a-49b6-477f-ad71-16e0d6f5c8da" xlink:href="rlgy-20190930.xsd#rlgy_OperatingLeaseAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_OperatingLeaseAssetsMember_f835650a-49b6-477f-ad71-16e0d6f5c8da" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_a4645b80-c62a-4761-8c07-94c50e0002b7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_a4645b80-c62a-4761-8c07-94c50e0002b7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsTotalMember_5699801f-3ea8-4456-a66e-57dfdcf4f244" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsTotalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_AssetsTotalMember_5699801f-3ea8-4456-a66e-57dfdcf4f244" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CurrentOperatingLeaseLiabilitiesMember_ab69e48a-d83d-4449-8c71-a8a239d67ddc" xlink:href="rlgy-20190930.xsd#rlgy_CurrentOperatingLeaseLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_CurrentOperatingLeaseLiabilitiesMember_ab69e48a-d83d-4449-8c71-a8a239d67ddc" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesMember_60e7199d-b320-4ca1-bd38-3979b2479f4d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_AccruedLiabilitiesMember_60e7199d-b320-4ca1-bd38-3979b2479f4d" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CurrentLiabilitiesMember_71f85136-74a7-4b44-9a61-3f12800f25cc" xlink:href="rlgy-20190930.xsd#rlgy_CurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_CurrentLiabilitiesMember_71f85136-74a7-4b44-9a61-3f12800f25cc" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LongtermOperatingLeaseLiabilitiesMember_a018fe31-8679-4dfc-9133-c3016a3540a2" xlink:href="rlgy-20190930.xsd#rlgy_LongtermOperatingLeaseLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_LongtermOperatingLeaseLiabilitiesMember_a018fe31-8679-4dfc-9133-c3016a3540a2" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_d790739d-fd61-42d8-8355-1ce3bfad62b1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_d790739d-fd61-42d8-8355-1ce3bfad62b1" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesTotalMember_dff98682-4136-4e17-91a6-4b6786edb1ed" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesTotalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_LiabilitiesTotalMember_dff98682-4136-4e17-91a6-4b6786edb1ed" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMember_944c631c-18a8-420f-b71f-acd771047498" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_us-gaap_EquityMember_944c631c-18a8-420f-b71f-acd771047498" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LiabilitiesandEquityTotalMember_0f5d3910-a063-49d4-93c9-b4aeb084bcaf" xlink:href="rlgy-20190930.xsd#rlgy_LiabilitiesandEquityTotalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_adecef07-e400-4c56-b3aa-7cb697ef31d1" xlink:to="loc_rlgy_LiabilitiesandEquityTotalMember_0f5d3910-a063-49d4-93c9-b4aeb084bcaf" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_5e31817b-71c1-45e2-bb83-96a7f5e50ee0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2d6cb1e0-cab6-4ec3-a445-04718dd09916" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_5e31817b-71c1-45e2-bb83-96a7f5e50ee0" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_5e31817b-71c1-45e2-bb83-96a7f5e50ee0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_5e31817b-71c1-45e2-bb83-96a7f5e50ee0" xlink:to="loc_us-gaap_TypeOfAdoptionMember_5e31817b-71c1-45e2-bb83-96a7f5e50ee0_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_2299a8ee-7399-43cd-ad75-52104c9ccc6b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_5e31817b-71c1-45e2-bb83-96a7f5e50ee0" xlink:to="loc_us-gaap_TypeOfAdoptionMember_2299a8ee-7399-43cd-ad75-52104c9ccc6b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AdoptionofASC842LeaseTransitionEntriesDomain_6d12e12d-2f38-4915-981c-3491562a4371" xlink:href="rlgy-20190930.xsd#rlgy_AdoptionofASC842LeaseTransitionEntriesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfAdoptionMember_2299a8ee-7399-43cd-ad75-52104c9ccc6b" xlink:to="loc_rlgy_AdoptionofASC842LeaseTransitionEntriesDomain_6d12e12d-2f38-4915-981c-3491562a4371" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureNotes" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureNotes"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureNotes" xlink:type="extended" id="i811a9b341c714c7e935d59ddc7c3a83a_475802d1-381f-4b4f-ac3a-1a0fb9540e5d"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosurePolicies" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosurePolicies"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosurePolicies" xlink:type="extended" id="i957054b4051c4685bdda9f56e04e5647_41a0a9bc-ec11-4b76-9fa1-30619be61d90"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureTables" xlink:type="extended" id="icf5a3c29510c4c968333ac0fe9c496fb_84d5dfdc-c7d8-4a34-9b05-14915030c23e"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureNarrative" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureNarrative"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureNarrative" xlink:type="extended" id="iad5fd272362d4b02aae78fc4a3370d43_9b84b26f-2360-4494-bfba-91a5f363ab72">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_1041348e-1df7-4b77-a47d-f0e099f54dde" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Numberofrealestateleases_0a802a3d-c680-464d-a0c5-db70a864782c" xlink:href="rlgy-20190930.xsd#rlgy_Numberofrealestateleases"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1041348e-1df7-4b77-a47d-f0e099f54dde" xlink:to="loc_rlgy_Numberofrealestateleases_0a802a3d-c680-464d-a0c5-db70a864782c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_870278e6-1ab2-4f67-a9b0-82a8349480d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1041348e-1df7-4b77-a47d-f0e099f54dde" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_870278e6-1ab2-4f67-a9b0-82a8349480d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_8299c10c-a4f3-421c-93e7-fa7308921e1a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1041348e-1df7-4b77-a47d-f0e099f54dde" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_8299c10c-a4f3-421c-93e7-fa7308921e1a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeAxis_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_8299c10c-a4f3-421c-93e7-fa7308921e1a" xlink:to="loc_us-gaap_LeaseArrangementTypeAxis_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_82fb40bd-8993-4733-b76d-ae940a71c250" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_8b4c3b4d-16ef-4a3e-b0d1-8d4b22e50d6e" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_82fb40bd-8993-4733-b76d-ae940a71c250" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealestateleasesMember_2516faf7-2f30-44bf-ab15-850a4c25973c" xlink:href="rlgy-20190930.xsd#rlgy_RealestateleasesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_82fb40bd-8993-4733-b76d-ae940a71c250" xlink:to="loc_rlgy_RealestateleasesMember_2516faf7-2f30-44bf-ab15-850a4c25973c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_BrokeragesalesofficesMember_18aaa909-3908-4387-9625-4fcf14b663db" xlink:href="rlgy-20190930.xsd#rlgy_BrokeragesalesofficesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_82fb40bd-8993-4733-b76d-ae940a71c250" xlink:to="loc_rlgy_BrokeragesalesofficesMember_18aaa909-3908-4387-9625-4fcf14b663db" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ShorttermleaseMember_172a447a-db4d-466a-a90a-0cc69af0d68d" xlink:href="rlgy-20190930.xsd#rlgy_ShorttermleaseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_82fb40bd-8993-4733-b76d-ae940a71c250" xlink:to="loc_rlgy_ShorttermleaseMember_172a447a-db4d-466a-a90a-0cc69af0d68d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LeaseTypeAxis_76d1a085-3e50-4a0d-8871-862a9ec36e8a" xlink:href="rlgy-20190930.xsd#rlgy_LeaseTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_8299c10c-a4f3-421c-93e7-fa7308921e1a" xlink:to="loc_rlgy_LeaseTypeAxis_76d1a085-3e50-4a0d-8871-862a9ec36e8a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LeaseTypeDomain_76d1a085-3e50-4a0d-8871-862a9ec36e8a_default" xlink:href="rlgy-20190930.xsd#rlgy_LeaseTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_LeaseTypeAxis_76d1a085-3e50-4a0d-8871-862a9ec36e8a" xlink:to="loc_rlgy_LeaseTypeDomain_76d1a085-3e50-4a0d-8871-862a9ec36e8a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LeaseTypeDomain_b10ab43e-e3a7-493b-bb7e-a980b8803929" xlink:href="rlgy-20190930.xsd#rlgy_LeaseTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_LeaseTypeAxis_76d1a085-3e50-4a0d-8871-862a9ec36e8a" xlink:to="loc_rlgy_LeaseTypeDomain_b10ab43e-e3a7-493b-bb7e-a980b8803929" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealestateleasesMember_17d53784-1a9f-4e0d-8e9c-2ccdb193b64f" xlink:href="rlgy-20190930.xsd#rlgy_RealestateleasesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LeaseTypeDomain_b10ab43e-e3a7-493b-bb7e-a980b8803929" xlink:to="loc_rlgy_RealestateleasesMember_17d53784-1a9f-4e0d-8e9c-2ccdb193b64f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_BrokeragesalesofficesMember_bfbec08c-8f3f-46b5-8b34-6fa18690bc86" xlink:href="rlgy-20190930.xsd#rlgy_BrokeragesalesofficesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LeaseTypeDomain_b10ab43e-e3a7-493b-bb7e-a980b8803929" xlink:to="loc_rlgy_BrokeragesalesofficesMember_bfbec08c-8f3f-46b5-8b34-6fa18690bc86" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_0278b861-4e61-4740-8db2-88bf39cb9026" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_8299c10c-a4f3-421c-93e7-fa7308921e1a" xlink:to="loc_srt_RangeAxis_0278b861-4e61-4740-8db2-88bf39cb9026" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0278b861-4e61-4740-8db2-88bf39cb9026_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_0278b861-4e61-4740-8db2-88bf39cb9026" xlink:to="loc_srt_RangeMember_0278b861-4e61-4740-8db2-88bf39cb9026_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_cec19cbe-3218-42cb-8497-a23db6deb028" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_0278b861-4e61-4740-8db2-88bf39cb9026" xlink:to="loc_srt_RangeMember_cec19cbe-3218-42cb-8497-a23db6deb028" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_660ebc63-0f69-4766-b86e-eafde251e40c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_cec19cbe-3218-42cb-8497-a23db6deb028" xlink:to="loc_srt_MinimumMember_660ebc63-0f69-4766-b86e-eafde251e40c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_4e0a96c3-0d1c-4351-bae7-9e517631a6f7" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_cec19cbe-3218-42cb-8497-a23db6deb028" xlink:to="loc_srt_MaximumMember_4e0a96c3-0d1c-4351-bae7-9e517631a6f7" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureSupplementalBalanceSheetInformationDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureSupplementalBalanceSheetInformationDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureSupplementalBalanceSheetInformationDetails" xlink:type="extended" id="ia5714fc7947d419bafd1f0d9a12932b4_d8da5bde-a7e0-4ab7-9851-22862d645525"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureLeaseLiabilityMaturityTable" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureLeaseLiabilityMaturityTable"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureLeaseLiabilityMaturityTable" xlink:type="extended" id="i7623a56e34e042fca53eef3da55d61af_04944fdd-f983-4995-a744-6fbd5633c609"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureLeaseCostsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureLeaseCostsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureLeaseCostsDetails" xlink:type="extended" id="i0024bea0fe984119882089af46be3a8b_a5fbbba1-cc5f-45b3-93f7-311dd070325d"/>
<link:roleRef roleURI="http://www.realogy.com/role/LeasesLesseeDisclosureSupplementalCashFlowInformationDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#LeasesLesseeDisclosureSupplementalCashFlowInformationDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/LeasesLesseeDisclosureSupplementalCashFlowInformationDetails" xlink:type="extended" id="i6fb49b2ce5da4d45b60ebb2bc7b962a2_54496992-818f-4a31-b6fa-e8a97ae6ae18"/>
<link:roleRef roleURI="http://www.realogy.com/role/IntangibleAssets" xlink:type="simple" xlink:href="rlgy-20190930.xsd#IntangibleAssets"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/IntangibleAssets" xlink:type="extended" id="i30c1a077a16448df8fb65cdfcb0ec139_61a46839-5710-4d11-aed2-75a1f4125544"/>
<link:roleRef roleURI="http://www.realogy.com/role/IntangibleAssetsTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#IntangibleAssetsTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/IntangibleAssetsTables" xlink:type="extended" id="i037fdf3903a7451cbbf8563993a6025c_174e11b4-8e69-44ac-a811-7d577eb6b01c"/>
<link:roleRef roleURI="http://www.realogy.com/role/IntangibleAssetsGoodwillDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#IntangibleAssetsGoodwillDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/IntangibleAssetsGoodwillDetails" xlink:type="extended" id="i9a2e6382177244998b699cade6f591e5_7b659112-fc82-4965-93e6-10729d456c53">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_1e8794ec-9ec2-41a5-95db-2157f3d0d5f2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_58589e23-db97-4ed1-8e47-58e87cb42d5b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillRollForward"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_1e8794ec-9ec2-41a5-95db-2157f3d0d5f2" xlink:to="loc_us-gaap_GoodwillRollForward_58589e23-db97-4ed1-8e47-58e87cb42d5b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_ca20f20e-73db-4679-a3e6-2228c5be4dcb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_58589e23-db97-4ed1-8e47-58e87cb42d5b" xlink:to="loc_us-gaap_Goodwill_ca20f20e-73db-4679-a3e6-2228c5be4dcb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_81091673-49a3-430c-9d62-3d6792916ebb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_58589e23-db97-4ed1-8e47-58e87cb42d5b" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_81091673-49a3-430c-9d62-3d6792916ebb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_2c312ba6-9cb9-47e5-aa82-01cf1576d336" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_58589e23-db97-4ed1-8e47-58e87cb42d5b" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_2c312ba6-9cb9-47e5-aa82-01cf1576d336" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_98df7f23-a075-4bbf-a873-83d4011b245d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_196858ac-1ae0-43f0-8e32-8a0e882b01bf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_1e8794ec-9ec2-41a5-95db-2157f3d0d5f2" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_196858ac-1ae0-43f0-8e32-8a0e882b01bf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_115f0950-8c93-488e-bddb-506704f63511" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_b16bbecf-2ec2-4a7e-9bcc-e0eec57c3bb5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfGoodwillTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_1e8794ec-9ec2-41a5-95db-2157f3d0d5f2" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_b16bbecf-2ec2-4a7e-9bcc-e0eec57c3bb5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_93b24377-b543-42d8-9a94-77e84fd130b4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_b16bbecf-2ec2-4a7e-9bcc-e0eec57c3bb5" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_93b24377-b543-42d8-9a94-77e84fd130b4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_93b24377-b543-42d8-9a94-77e84fd130b4_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_93b24377-b543-42d8-9a94-77e84fd130b4" xlink:to="loc_us-gaap_SegmentDomain_93b24377-b543-42d8-9a94-77e84fd130b4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_93b24377-b543-42d8-9a94-77e84fd130b4" xlink:to="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_9826a495-52b8-4d3c-ad01-4b7f9b6ab6f0" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_9826a495-52b8-4d3c-ad01-4b7f9b6ab6f0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_ec5f935e-044f-48af-97dd-1d1d5af2ff62" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_ec5f935e-044f-48af-97dd-1d1d5af2ff62" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_c920ec28-f4c7-45f9-ae7c-5b7889090362" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:to="loc_rlgy_RelocationServicesMember_c920ec28-f4c7-45f9-ae7c-5b7889090362" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_e6d9afc5-1fc3-405f-9aac-0af09f793dd2" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6e22475-37b8-47ab-83cd-6f1b850d3447" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_e6d9afc5-1fc3-405f-9aac-0af09f793dd2" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/IntangibleAssetsIntangibleAssetsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#IntangibleAssetsIntangibleAssetsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/IntangibleAssetsIntangibleAssetsDetails" xlink:type="extended" id="i8b05f48ab6494f2680091680cfa984e1_4366034a-e575-4344-908f-540d0d4954bb">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:href="rlgy-20190930.xsd#rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_63a5a81b-7704-42ba-9408-39917244e614" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_63a5a81b-7704-42ba-9408-39917244e614" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_79cd0077-d35b-4b41-86be-7968e99482cf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_79cd0077-d35b-4b41-86be-7968e99482cf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TotalOtherIntangibleAssetsGross_c2f9fce0-89b4-46d2-a13a-b9ebec5db379" xlink:href="rlgy-20190930.xsd#rlgy_TotalOtherIntangibleAssetsGross"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_rlgy_TotalOtherIntangibleAssetsGross_c2f9fce0-89b4-46d2-a13a-b9ebec5db379" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c47e27f0-1a6c-466c-a71b-ed51c9b9dee0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c47e27f0-1a6c-466c-a71b-ed51c9b9dee0" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_39e8b4e9-865c-4029-842a-c8540da7b532" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_39e8b4e9-865c-4029-842a-c8540da7b532" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsNet_60a61aed-458e-4344-b4a2-b2b3bca95c08" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIntangibleAssetsNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_OtherIntangibleAssetsNet_60a61aed-458e-4344-b4a2-b2b3bca95c08" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_10f9ee1c-672a-493d-a0c6-7cc06bdfda46" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_10f9ee1c-672a-493d-a0c6-7cc06bdfda46" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:href="rlgy-20190930.xsd#rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems_00c7f854-f890-4030-a9b9-6214a14cb476" xlink:to="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_cc0edd7e-be74-4446-93c5-30719aaed22f" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:to="loc_srt_RangeAxis_cc0edd7e-be74-4446-93c5-30719aaed22f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_cc0edd7e-be74-4446-93c5-30719aaed22f_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_cc0edd7e-be74-4446-93c5-30719aaed22f" xlink:to="loc_srt_RangeMember_cc0edd7e-be74-4446-93c5-30719aaed22f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_fd2b9408-1438-413a-b470-5cb47a386512" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_cc0edd7e-be74-4446-93c5-30719aaed22f" xlink:to="loc_srt_RangeMember_fd2b9408-1438-413a-b470-5cb47a386512" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_757f54e8-2908-40d1-9f55-316c0966a782" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_fd2b9408-1438-413a-b470-5cb47a386512" xlink:to="loc_srt_MinimumMember_757f54e8-2908-40d1-9f55-316c0966a782" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_8f8697e5-90f0-4323-86f5-d8cc4311a22a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_fd2b9408-1438-413a-b470-5cb47a386512" xlink:to="loc_srt_MaximumMember_8f8697e5-90f0-4323-86f5-d8cc4311a22a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_b3fca6e9-ed71-4120-8755-3a68e516a35e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_b3fca6e9-ed71-4120-8755-3a68e516a35e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_b3fca6e9-ed71-4120-8755-3a68e516a35e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_b3fca6e9-ed71-4120-8755-3a68e516a35e" xlink:to="loc_us-gaap_SegmentDomain_b3fca6e9-ed71-4120-8755-3a68e516a35e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_399b031d-3a4f-4944-900d-be5341fca7ba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_b3fca6e9-ed71-4120-8755-3a68e516a35e" xlink:to="loc_us-gaap_SegmentDomain_399b031d-3a4f-4944-900d-be5341fca7ba" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_287cdaab-8db4-4208-afc3-8a34e3649e49" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_399b031d-3a4f-4944-900d-be5341fca7ba" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_287cdaab-8db4-4208-afc3-8a34e3649e49" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_572fe9f1-d39b-4ba7-8fdd-d63bbe98d882" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseRightsMember_f6ad838b-14c6-4e50-9646-2d11bb49e966" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FranchiseRightsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:to="loc_us-gaap_FranchiseRightsMember_f6ad838b-14c6-4e50-9646-2d11bb49e966" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_16db02db-2e83-4fae-9485-fe399fc3c6fa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LicensingAgreementsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:to="loc_us-gaap_LicensingAgreementsMember_16db02db-2e83-4fae-9485-fe399fc3c6fa" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_a0017b31-e874-48f0-a006-7867326b5dd1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRelationshipsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:to="loc_us-gaap_CustomerRelationshipsMember_a0017b31-e874-48f0-a006-7867326b5dd1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_90e3c26c-b6f8-47db-ada3-fd66d64b33f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIntangibleAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a558b5b1-d784-435d-99d3-d875fedf9f45" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_90e3c26c-b6f8-47db-ada3-fd66d64b33f5" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetTable_5d5b8bc1-71f1-4191-b508-a9a6e003eb97" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_fb3bdf53-6b37-42c0-b50f-445f596389bd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bc00c1b0-a480-49fd-8fb1-f35e4ac94f24" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_fb3bdf53-6b37-42c0-b50f-445f596389bd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksMember_5fe21e3f-d7b9-4160-b672-9d79fe8fdaa7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TrademarksMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_fb3bdf53-6b37-42c0-b50f-445f596389bd" xlink:to="loc_us-gaap_TrademarksMember_5fe21e3f-d7b9-4160-b672-9d79fe8fdaa7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitlePlantSharesMember_b904373e-5b11-47ca-8cc4-4caf64963f9e" xlink:href="rlgy-20190930.xsd#rlgy_TitlePlantSharesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_fb3bdf53-6b37-42c0-b50f-445f596389bd" xlink:to="loc_rlgy_TitlePlantSharesMember_b904373e-5b11-47ca-8cc4-4caf64963f9e" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/IntangibleAssetsAmortizationExpenseDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#IntangibleAssetsAmortizationExpenseDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/IntangibleAssetsAmortizationExpenseDetails" xlink:type="extended" id="i9a3475b1d2b74e11995dc12ef0d57f90_f9899e29-66f5-4cc9-a8a9-2090748e58aa">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_284534d5-51fe-4c32-9455-37a010641efd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_284534d5-51fe-4c32-9455-37a010641efd" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Thenumberofsucceedingyearsforwhichamortizationexpenseisdisclosed_7511285a-8710-4a71-a7d0-0926989ef497" xlink:href="rlgy-20190930.xsd#rlgy_Thenumberofsucceedingyearsforwhichamortizationexpenseisdisclosed"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_rlgy_Thenumberofsucceedingyearsforwhichamortizationexpenseisdisclosed_7511285a-8710-4a71-a7d0-0926989ef497" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_6c2744f5-c03a-48e2-8bd6-53332ec6f6f7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_6c2744f5-c03a-48e2-8bd6-53332ec6f6f7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_29f1e145-2359-434a-9d9c-f078c3ce0f5e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_29f1e145-2359-434a-9d9c-f078c3ce0f5e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_1b78a78f-95a2-4fc5-9c15-a875f1108fb4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_1b78a78f-95a2-4fc5-9c15-a875f1108fb4" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_ad11da7e-7fd6-4e3e-b2a6-faaf5b592743" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_ad11da7e-7fd6-4e3e-b2a6-faaf5b592743" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4042b782-2289-40b2-a301-ab0f00b46e4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4042b782-2289-40b2-a301-ab0f00b46e4f" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_71706aea-d68c-4bd9-bb11-7cd4eea23718" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_71706aea-d68c-4bd9-bb11-7cd4eea23718" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_92f2997c-5203-4b6d-9616-e35f61012ec7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_5eb25047-7d13-42b6-a939-44ba216f7e30" xlink:to="loc_us-gaap_StatementTable_92f2997c-5203-4b6d-9616-e35f61012ec7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_096e1609-92f2-435a-9964-a2ad14d4dd29" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_92f2997c-5203-4b6d-9616-e35f61012ec7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_096e1609-92f2-435a-9964-a2ad14d4dd29" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_096e1609-92f2-435a-9964-a2ad14d4dd29_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_096e1609-92f2-435a-9964-a2ad14d4dd29" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_096e1609-92f2-435a-9964-a2ad14d4dd29_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_096e1609-92f2-435a-9964-a2ad14d4dd29" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseRightsMember_069b911b-2651-4c15-8b6f-06a355580198" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FranchiseRightsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:to="loc_us-gaap_FranchiseRightsMember_069b911b-2651-4c15-8b6f-06a355580198" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_5e1affcc-5bf4-4192-a1e2-986cc7a436e0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LicensingAgreementsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:to="loc_us-gaap_LicensingAgreementsMember_5e1affcc-5bf4-4192-a1e2-986cc7a436e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_a5dd2fe4-2e4c-4d35-9103-3cfb34d266a5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRelationshipsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:to="loc_us-gaap_CustomerRelationshipsMember_a5dd2fe4-2e4c-4d35-9103-3cfb34d266a5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_61cd336b-919f-4b2e-8eb1-1bbe3632bc14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIntangibleAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d20fdc6d-cdeb-4a84-850e-b70f8ca54060" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_61cd336b-919f-4b2e-8eb1-1bbe3632bc14" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilities" xlink:type="simple" xlink:href="rlgy-20190930.xsd#AccruedExpensesAndOtherCurrentLiabilities"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilities" xlink:type="extended" id="i5a4bf6b9018c4ff2ad85b74aaae10fb7_dc697f0e-a188-4e68-b06a-8e0911b4cb80"/>
<link:roleRef roleURI="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#AccruedExpensesAndOtherCurrentLiabilitiesTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables" xlink:type="extended" id="ia31f607134964a6a88453de365821826_696af427-5050-44fa-a69a-43f648ad1d83"/>
<link:roleRef roleURI="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#AccruedExpensesAndOtherCurrentLiabilitiesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/AccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="extended" id="i79cb740f3e1b46b7a365dafcb3a0b5eb_2c1c4430-8638-417a-b0e5-fe771626fbb3"/>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebt" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebt"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebt" xlink:type="extended" id="i293d280293ba4f3bbfb47da2fe7ac2a2_5cb50148-7c89-424f-afa8-a8b9d243e273"/>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtTables" xlink:type="extended" id="ie990f8b21a2f4aba81dcfaf0a18bf7f5_b5d2ad58-5277-4300-afae-670ff7e09377"/>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtScheduleofTotalIndebtednessDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtScheduleofTotalIndebtednessDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtScheduleofTotalIndebtednessDetails" xlink:type="extended" id="i8e5a7da8bf704a2b96c55ee1dce13e84_dee49f10-c9d4-4963-b02d-c5f2674afb22">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:href="rlgy-20190930.xsd#rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_dbb40ef6-e58c-4515-bc80-9a2685fb8ab1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:to="loc_us-gaap_LineOfCredit_dbb40ef6-e58c-4515-bc80-9a2685fb8ab1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_564c847e-a423-480d-8401-15037e42cd84" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:to="loc_us-gaap_LongTermDebt_564c847e-a423-480d-8401-15037e42cd84" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_a98c8233-fa77-4d4a-89ff-c3e143fbc684" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:to="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_a98c8233-fa77-4d4a-89ff-c3e143fbc684" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_d9e07b82-a5f7-4f3d-ab9f-84391cebb41b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSecuredFinancings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:to="loc_us-gaap_OtherSecuredFinancings_d9e07b82-a5f7-4f3d-ab9f-84391cebb41b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ScheduleOfTotalIndebtednessTable_9baca712-121a-44f5-a0af-c248dc6465b7" xlink:href="rlgy-20190930.xsd#rlgy_ScheduleOfTotalIndebtednessTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_efe95264-b89b-412f-b8a2-18b58df0afdb" xlink:to="loc_rlgy_ScheduleOfTotalIndebtednessTable_9baca712-121a-44f5-a0af-c248dc6465b7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_2a324c11-f306-471e-9c7a-6c1a70cb0f8f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_9baca712-121a-44f5-a0af-c248dc6465b7" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_2a324c11-f306-471e-9c7a-6c1a70cb0f8f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_2a324c11-f306-471e-9c7a-6c1a70cb0f8f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_2a324c11-f306-471e-9c7a-6c1a70cb0f8f" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_2a324c11-f306-471e-9c7a-6c1a70cb0f8f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_632baab4-5d11-4821-8c09-515de231e5af" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_2a324c11-f306-471e-9c7a-6c1a70cb0f8f" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_632baab4-5d11-4821-8c09-515de231e5af" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_8a53d5d1-b897-49ba-b2f0-ed4ef533acb2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_632baab4-5d11-4821-8c09-515de231e5af" xlink:to="loc_us-gaap_LineOfCreditMember_8a53d5d1-b897-49ba-b2f0-ed4ef533acb2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizationobligationMember_92bbd718-f90a-49c4-9a96-4c6e890b4751" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizationobligationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_632baab4-5d11-4821-8c09-515de231e5af" xlink:to="loc_rlgy_SecuritizationobligationMember_92bbd718-f90a-49c4-9a96-4c6e890b4751" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_646951be-9ca5-4c80-bd2a-b9f8c0a544c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_9baca712-121a-44f5-a0af-c248dc6465b7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_646951be-9ca5-4c80-bd2a-b9f8c0a544c2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_646951be-9ca5-4c80-bd2a-b9f8c0a544c2_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_646951be-9ca5-4c80-bd2a-b9f8c0a544c2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_646951be-9ca5-4c80-bd2a-b9f8c0a544c2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6add96ef-ead3-494f-9be8-72f2fb0d0971" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_646951be-9ca5-4c80-bd2a-b9f8c0a544c2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6add96ef-ead3-494f-9be8-72f2fb0d0971" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_dc74294c-b16f-4e5e-8071-e9be7368b931" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_6add96ef-ead3-494f-9be8-72f2fb0d0971" xlink:to="loc_us-gaap_SecuredDebtMember_dc74294c-b16f-4e5e-8071-e9be7368b931" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_923ce86e-7ee0-4b68-ae70-3818936e676c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_6add96ef-ead3-494f-9be8-72f2fb0d0971" xlink:to="loc_us-gaap_SeniorNotesMember_923ce86e-7ee0-4b68-ae70-3818936e676c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_c9a9953a-df5b-4218-a5c4-997c08eb67cc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_9baca712-121a-44f5-a0af-c248dc6465b7" xlink:to="loc_us-gaap_DebtInstrumentAxis_c9a9953a-df5b-4218-a5c4-997c08eb67cc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_c9a9953a-df5b-4218-a5c4-997c08eb67cc_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_c9a9953a-df5b-4218-a5c4-997c08eb67cc" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_c9a9953a-df5b-4218-a5c4-997c08eb67cc_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_c9a9953a-df5b-4218-a5c4-997c08eb67cc" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_b95932d0-74b8-43e2-ad98-d5d3a7785835" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_b95932d0-74b8-43e2-ad98-d5d3a7785835" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanBFacilityMember_915503e7-737d-4cfa-bd0b-856c38461d07" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanBFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_TermLoanBFacilityMember_915503e7-737d-4cfa-bd0b-856c38461d07" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAMember_b43057d4-4aaf-4a08-a4bf-b9d59f8b88ed" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_TermLoanAMember_b43057d4-4aaf-4a08-a4bf-b9d59f8b88ed" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.50SeniorNotesMember_40d65490-9103-4e17-bcaf-1d53f7588150" xlink:href="rlgy-20190930.xsd#rlgy_A4.50SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_A4.50SeniorNotesMember_40d65490-9103-4e17-bcaf-1d53f7588150" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A5.25SeniorNotesMember_a924e2f5-4b47-4fa9-a652-2fa1540361fa" xlink:href="rlgy-20190930.xsd#rlgy_A5.25SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_A5.25SeniorNotesMember_a924e2f5-4b47-4fa9-a652-2fa1540361fa" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.875SeniorNotesMember_4d4901ce-cfdd-4dea-b428-d7898d4a3e1c" xlink:href="rlgy-20190930.xsd#rlgy_A4.875SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_A4.875SeniorNotesMember_4d4901ce-cfdd-4dea-b428-d7898d4a3e1c" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A9.375SeniorNotesMember_f6dd6522-5b81-4e9e-86a5-612278e9072c" xlink:href="rlgy-20190930.xsd#rlgy_A9.375SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_A9.375SeniorNotesMember_f6dd6522-5b81-4e9e-86a5-612278e9072c" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AppleRidgeFundingLlcMember_b2e79188-bb66-4a98-8c27-c421fc255d0c" xlink:href="rlgy-20190930.xsd#rlgy_AppleRidgeFundingLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_AppleRidgeFundingLlcMember_b2e79188-bb66-4a98-8c27-c421fc255d0c" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CartusFinancingLimitedMember_f38e6623-6b23-4657-91fc-e00890a54183" xlink:href="rlgy-20190930.xsd#rlgy_CartusFinancingLimitedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_da867d3f-ce51-44b9-a7a3-0065cab14e85" xlink:to="loc_rlgy_CartusFinancingLimitedMember_f38e6623-6b23-4657-91fc-e00890a54183" xlink:type="arc" order="8"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtIndebtednessTableDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtIndebtednessTableDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtIndebtednessTableDetails" xlink:type="extended" id="ie0afb3e89d874e6f870d5b1d06e9b324_04f53c8f-06a2-4aef-a4fe-ea36c2cfab65">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_f9aad3d2-8621-4303-9d35-5ce888706562" xlink:href="rlgy-20190930.xsd#rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtOtherDisclosuresAbstract_7c06bd9a-952a-4ddf-beeb-094edc5b0077" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtOtherDisclosuresAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_f9aad3d2-8621-4303-9d35-5ce888706562" xlink:to="loc_us-gaap_LongTermDebtOtherDisclosuresAbstract_7c06bd9a-952a-4ddf-beeb-094edc5b0077" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_7254db71-635d-41f5-9ceb-a1496344276a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtOtherDisclosuresAbstract_7c06bd9a-952a-4ddf-beeb-094edc5b0077" xlink:to="loc_us-gaap_LineOfCredit_7254db71-635d-41f5-9ceb-a1496344276a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_517be688-043c-4ff9-8515-b923b89bba4e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtOtherDisclosuresAbstract_7c06bd9a-952a-4ddf-beeb-094edc5b0077" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_517be688-043c-4ff9-8515-b923b89bba4e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_db7e387a-6a16-4ca2-b9eb-5a616ed83d5e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSecuredFinancings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtOtherDisclosuresAbstract_7c06bd9a-952a-4ddf-beeb-094edc5b0077" xlink:to="loc_us-gaap_OtherSecuredFinancings_db7e387a-6a16-4ca2-b9eb-5a616ed83d5e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OutstandingBorrowingsAbstract_2b315904-6a40-4783-acae-08801ceb7501" xlink:href="rlgy-20190930.xsd#rlgy_OutstandingBorrowingsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_f9aad3d2-8621-4303-9d35-5ce888706562" xlink:to="loc_rlgy_OutstandingBorrowingsAbstract_2b315904-6a40-4783-acae-08801ceb7501" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_c0c3a1a5-9de3-4047-af83-1cd869cace7e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_OutstandingBorrowingsAbstract_2b315904-6a40-4783-acae-08801ceb7501" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_c0c3a1a5-9de3-4047-af83-1cd869cace7e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:href="rlgy-20190930.xsd#rlgy_AvailableBorrowingCapacityAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_f9aad3d2-8621-4303-9d35-5ce888706562" xlink:to="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_62d6f806-1eda-4b3f-93ea-e5e8a07a34dd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_46069faf-70d8-41e2-9a14-149ee577e32c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_LongTermDebt_46069faf-70d8-41e2-9a14-149ee577e32c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_f5e7c1c1-dca4-4e2c-ba3c-ad725d4d78a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSecuredFinancings"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_07c460f0-fa0c-4735-a21b-1fbf5e78d274" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_07c460f0-fa0c-4735-a21b-1fbf5e78d274" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8b0877f9-daa2-4e57-b99b-fd002e54dfa9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8b0877f9-daa2-4e57-b99b-fd002e54dfa9" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_f48bf6a5-5a5b-4431-b00f-1500afd13b8b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_f48bf6a5-5a5b-4431-b00f-1500afd13b8b" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_7bff6461-0843-447b-9237-e19b8bfdfd96" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_7bff6461-0843-447b-9237-e19b8bfdfd96" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor_daf4b5df-dae4-4f06-a84c-c4298ac35053" xlink:href="rlgy-20190930.xsd#rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor_daf4b5df-dae4-4f06-a84c-c4298ac35053" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_ef2980c2-e714-463c-9e2a-50e0daf7b4e0" xlink:href="rlgy-20190930.xsd#rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_ef2980c2-e714-463c-9e2a-50e0daf7b4e0" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizedObligationMaximumBorrowingCapacity_05302adb-9b1c-4387-a7ce-6dcbca272d04" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizedObligationMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_rlgy_SecuritizedObligationMaximumBorrowingCapacity_05302adb-9b1c-4387-a7ce-6dcbca272d04" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_ea116001-d46d-47b0-8342-b6b68fc42390" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_ea116001-d46d-47b0-8342-b6b68fc42390" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LetterOfCreditBorrowingCapacity_dcaa46ee-9214-4c75-8781-c315d19568ff" xlink:href="rlgy-20190930.xsd#rlgy_LetterOfCreditBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_rlgy_LetterOfCreditBorrowingCapacity_dcaa46ee-9214-4c75-8781-c315d19568ff" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_0764f15b-10e7-4daf-a428-81d31d0d71d0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_AvailableBorrowingCapacityAbstract_e8135dc5-5cd0-4c8e-a41b-e2cd483222e1" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_0764f15b-10e7-4daf-a428-81d31d0d71d0" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:href="rlgy-20190930.xsd#rlgy_ScheduleOfTotalIndebtednessTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_ScheduleOfLongTermAndShortTermDebtInstrumentsLineItems_f9aad3d2-8621-4303-9d35-5ce888706562" xlink:to="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_7cd71401-3d7e-4072-a400-46f33f26afc5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_7cd71401-3d7e-4072-a400-46f33f26afc5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_7cd71401-3d7e-4072-a400-46f33f26afc5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_7cd71401-3d7e-4072-a400-46f33f26afc5" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_7cd71401-3d7e-4072-a400-46f33f26afc5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_c43123a6-b3b1-4c94-8dbe-6e3d55bea8c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_7cd71401-3d7e-4072-a400-46f33f26afc5" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_c43123a6-b3b1-4c94-8dbe-6e3d55bea8c2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_a2227a13-e0de-4214-84d2-ab0fb11c9be9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_c43123a6-b3b1-4c94-8dbe-6e3d55bea8c2" xlink:to="loc_us-gaap_SubsequentEventMember_a2227a13-e0de-4214-84d2-ab0fb11c9be9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_4b073981-4a4a-4429-8246-0db2905e47f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_4b073981-4a4a-4429-8246-0db2905e47f5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_4b073981-4a4a-4429-8246-0db2905e47f5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_4b073981-4a4a-4429-8246-0db2905e47f5" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_4b073981-4a4a-4429-8246-0db2905e47f5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_d3a51a57-bf4c-4ef2-a2e1-b2120134fc35" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_4b073981-4a4a-4429-8246-0db2905e47f5" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_d3a51a57-bf4c-4ef2-a2e1-b2120134fc35" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_ad32d847-4c15-4718-b133-4153bb4a7729" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_d3a51a57-bf4c-4ef2-a2e1-b2120134fc35" xlink:to="loc_us-gaap_LineOfCreditMember_ad32d847-4c15-4718-b133-4153bb4a7729" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_09dc9229-508e-4e40-b0d3-2129a6fd0e55" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LetterOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_d3a51a57-bf4c-4ef2-a2e1-b2120134fc35" xlink:to="loc_us-gaap_LetterOfCreditMember_09dc9229-508e-4e40-b0d3-2129a6fd0e55" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizationobligationMember_f532f0b6-60f4-4d16-b4ff-2f056ab138b1" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizationobligationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_d3a51a57-bf4c-4ef2-a2e1-b2120134fc35" xlink:to="loc_rlgy_SecuritizationobligationMember_f532f0b6-60f4-4d16-b4ff-2f056ab138b1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_38f4dec9-c195-4f8d-b122-0a119f9f0a10" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_38f4dec9-c195-4f8d-b122-0a119f9f0a10" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_38f4dec9-c195-4f8d-b122-0a119f9f0a10_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_38f4dec9-c195-4f8d-b122-0a119f9f0a10" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_38f4dec9-c195-4f8d-b122-0a119f9f0a10_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_c7831622-7d54-44c7-9716-e039e63d2c49" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_38f4dec9-c195-4f8d-b122-0a119f9f0a10" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_c7831622-7d54-44c7-9716-e039e63d2c49" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_a25cec66-8a1a-44ed-abd3-44d553b674fe" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c7831622-7d54-44c7-9716-e039e63d2c49" xlink:to="loc_us-gaap_SecuredDebtMember_a25cec66-8a1a-44ed-abd3-44d553b674fe" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_15f2a88f-e105-44ad-a24e-4c1333d10bf0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c7831622-7d54-44c7-9716-e039e63d2c49" xlink:to="loc_us-gaap_SeniorNotesMember_15f2a88f-e105-44ad-a24e-4c1333d10bf0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_79615ea1-39d5-486e-8b18-885829a22625" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_us-gaap_CreditFacilityAxis_79615ea1-39d5-486e-8b18-885829a22625" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_79615ea1-39d5-486e-8b18-885829a22625_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_79615ea1-39d5-486e-8b18-885829a22625" xlink:to="loc_us-gaap_CreditFacilityDomain_79615ea1-39d5-486e-8b18-885829a22625_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_8826f07b-c8ad-4b04-9517-14c98c7c9828" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_79615ea1-39d5-486e-8b18-885829a22625" xlink:to="loc_us-gaap_CreditFacilityDomain_8826f07b-c8ad-4b04-9517-14c98c7c9828" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_c885fe81-d578-4e94-a7e2-fc6a94c7c135" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_8826f07b-c8ad-4b04-9517-14c98c7c9828" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_c885fe81-d578-4e94-a7e2-fc6a94c7c135" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_WorkingCapitalFacilityMember_f117b723-195e-4c74-8cca-5bbd68a2db76" xlink:href="rlgy-20190930.xsd#rlgy_WorkingCapitalFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_8826f07b-c8ad-4b04-9517-14c98c7c9828" xlink:to="loc_rlgy_WorkingCapitalFacilityMember_f117b723-195e-4c74-8cca-5bbd68a2db76" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_UnsecuredLetterofCreditFacilityMember_a8ea3bef-40c2-4ad3-93c4-8231b33c319e" xlink:href="rlgy-20190930.xsd#rlgy_UnsecuredLetterofCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_8826f07b-c8ad-4b04-9517-14c98c7c9828" xlink:to="loc_rlgy_UnsecuredLetterofCreditFacilityMember_a8ea3bef-40c2-4ad3-93c4-8231b33c319e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_990dfd18-9cfb-4487-a79f-1e599a5afdbd" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_990dfd18-9cfb-4487-a79f-1e599a5afdbd" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_990dfd18-9cfb-4487-a79f-1e599a5afdbd_default" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_990dfd18-9cfb-4487-a79f-1e599a5afdbd" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_990dfd18-9cfb-4487-a79f-1e599a5afdbd_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_c8c3d393-a81b-44a0-b8ef-ebce56e66790" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_990dfd18-9cfb-4487-a79f-1e599a5afdbd" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_c8c3d393-a81b-44a0-b8ef-ebce56e66790" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_ecbaa54a-be25-4a20-a75f-f7438bf70c4e" xlink:href="rlgy-20190930.xsd#rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_c8c3d393-a81b-44a0-b8ef-ebce56e66790" xlink:to="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_ecbaa54a-be25-4a20-a75f-f7438bf70c4e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_67fb5406-4563-4a72-bdf9-868dcbf933d1" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentYearsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_67fb5406-4563-4a72-bdf9-868dcbf933d1" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_67fb5406-4563-4a72-bdf9-868dcbf933d1_default" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentsYearsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_67fb5406-4563-4a72-bdf9-868dcbf933d1" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_67fb5406-4563-4a72-bdf9-868dcbf933d1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentsYearsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_67fb5406-4563-4a72-bdf9-868dcbf933d1" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2018Member_0ec83b50-5b6f-44de-85b1-6ba266d51f3f" xlink:href="rlgy-20190930.xsd#rlgy_A2018Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:to="loc_rlgy_A2018Member_0ec83b50-5b6f-44de-85b1-6ba266d51f3f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2019Member_32cd1c31-7962-4b95-b38c-5542b93dea86" xlink:href="rlgy-20190930.xsd#rlgy_A2019Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:to="loc_rlgy_A2019Member_32cd1c31-7962-4b95-b38c-5542b93dea86" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2020Member_2abf2d90-6824-4aab-92e2-64cce1c2e82d" xlink:href="rlgy-20190930.xsd#rlgy_A2020Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:to="loc_rlgy_A2020Member_2abf2d90-6824-4aab-92e2-64cce1c2e82d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2021Member_215969eb-8665-40b4-8510-1b2dc5921f76" xlink:href="rlgy-20190930.xsd#rlgy_A2021Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:to="loc_rlgy_A2021Member_215969eb-8665-40b4-8510-1b2dc5921f76" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2022Member_3ee2651b-68e0-4aa0-8b1c-3c8e31e88450" xlink:href="rlgy-20190930.xsd#rlgy_A2022Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_7be06c81-1732-4dba-a7a5-078a4592bf12" xlink:to="loc_rlgy_A2022Member_3ee2651b-68e0-4aa0-8b1c-3c8e31e88450" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_c709c63a-4f12-4680-be60-3fd753d4a089" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_us-gaap_DebtInstrumentAxis_c709c63a-4f12-4680-be60-3fd753d4a089" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_c709c63a-4f12-4680-be60-3fd753d4a089_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_c709c63a-4f12-4680-be60-3fd753d4a089" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_c709c63a-4f12-4680-be60-3fd753d4a089_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_c709c63a-4f12-4680-be60-3fd753d4a089" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_aa082988-d3d1-4b8e-a44d-0b2dafdbff9e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_aa082988-d3d1-4b8e-a44d-0b2dafdbff9e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanBFacilityMember_139f5d5c-1944-4b0d-88c6-19249487d2e1" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanBFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_TermLoanBFacilityMember_139f5d5c-1944-4b0d-88c6-19249487d2e1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAMember_b230a91d-877f-4d8e-a7b5-eae0d07548ef" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_TermLoanAMember_b230a91d-877f-4d8e-a7b5-eae0d07548ef" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A5.25SeniorNotesMember_d2ce9b1b-b9d8-4c8a-81b0-04496c87e8be" xlink:href="rlgy-20190930.xsd#rlgy_A5.25SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_A5.25SeniorNotesMember_d2ce9b1b-b9d8-4c8a-81b0-04496c87e8be" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.875SeniorNotesMember_781ed671-eb82-474b-b285-0c412ea6e475" xlink:href="rlgy-20190930.xsd#rlgy_A4.875SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_A4.875SeniorNotesMember_781ed671-eb82-474b-b285-0c412ea6e475" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A9.375SeniorNotesMember_a9e6832d-80e7-4fff-bfc7-a8d06cd77872" xlink:href="rlgy-20190930.xsd#rlgy_A9.375SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_A9.375SeniorNotesMember_a9e6832d-80e7-4fff-bfc7-a8d06cd77872" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AppleRidgeFundingLlcMember_d101f2d1-6c25-4703-8b9f-8fb1c70d2756" xlink:href="rlgy-20190930.xsd#rlgy_AppleRidgeFundingLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_AppleRidgeFundingLlcMember_d101f2d1-6c25-4703-8b9f-8fb1c70d2756" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CartusFinancingLimitedMember_da22d67d-4855-4ecf-85b1-33f4084d7d59" xlink:href="rlgy-20190930.xsd#rlgy_CartusFinancingLimitedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_30b25b2b-d121-4447-8a6d-8c675e0f7be4" xlink:to="loc_rlgy_CartusFinancingLimitedMember_da22d67d-4855-4ecf-85b1-33f4084d7d59" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeAxis_4542d09f-691c-4219-b936-b6aad0444b3e" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_ScheduleOfTotalIndebtednessTable_5ee9c755-ffcb-4d49-98e7-bf7789e54da0" xlink:to="loc_rlgy_InterestRateTypeAxis_4542d09f-691c-4219-b936-b6aad0444b3e" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_4542d09f-691c-4219-b936-b6aad0444b3e_default" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_InterestRateTypeAxis_4542d09f-691c-4219-b936-b6aad0444b3e" xlink:to="loc_rlgy_InterestRateTypeDomain_4542d09f-691c-4219-b936-b6aad0444b3e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_e11d3fc2-7fad-40ae-bd05-7261b6ef74dd" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_InterestRateTypeAxis_4542d09f-691c-4219-b936-b6aad0444b3e" xlink:to="loc_rlgy_InterestRateTypeDomain_e11d3fc2-7fad-40ae-bd05-7261b6ef74dd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LiborMember_945b1204-3914-4fe1-89bb-50dc74430b8f" xlink:href="rlgy-20190930.xsd#rlgy_LiborMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_e11d3fc2-7fad-40ae-bd05-7261b6ef74dd" xlink:to="loc_rlgy_LiborMember_945b1204-3914-4fe1-89bb-50dc74430b8f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AbrMember_a1dd418b-aeee-49f3-80d5-251293c7e5e1" xlink:href="rlgy-20190930.xsd#rlgy_AbrMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_e11d3fc2-7fad-40ae-bd05-7261b6ef74dd" xlink:to="loc_rlgy_AbrMember_a1dd418b-aeee-49f3-80d5-251293c7e5e1" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtMaturitiesTableDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtMaturitiesTableDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtMaturitiesTableDetails" xlink:type="extended" id="i45f6dc4cad9347239550864f6b856964_b7a29781-e56b-423b-b060-0d04cb559dfd">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:href="rlgy-20190930.xsd#rlgy_LongtermDebtFiscalYearMaturityLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MaturitiesOfLongTermDebtAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_74acc9b3-1669-4096-8bc1-9f03ebf4d63f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_74acc9b3-1669-4096-8bc1-9f03ebf4d63f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_7c3c59ec-341b-4158-87b7-3eb49895569a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_7c3c59ec-341b-4158-87b7-3eb49895569a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_f0460fd2-8972-44a7-a8c6-c547459c7f18" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_f0460fd2-8972-44a7-a8c6-c547459c7f18" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_ea392d38-49f4-47cf-93f6-9d786121d588" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_ea392d38-49f4-47cf-93f6-9d786121d588" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_351b2f5b-051d-4b52-b569-91db9038fc11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MaturitiesOfLongTermDebtAbstract_bcbcaad8-80cf-4220-8934-ec066fe38af9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_351b2f5b-051d-4b52-b569-91db9038fc11" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LongtermDebtMaturitiesYearsPresented_16f1f641-53e6-4489-86ee-d56326bd7236" xlink:href="rlgy-20190930.xsd#rlgy_LongtermDebtMaturitiesYearsPresented"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_rlgy_LongtermDebtMaturitiesYearsPresented_16f1f641-53e6-4489-86ee-d56326bd7236" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_adb5da71-1444-4cc4-877f-29c30564f560" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_adb5da71-1444-4cc4-877f-29c30564f560" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_0aef7f4d-b05f-4e82-a6e6-887c02ea685a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_us-gaap_LineOfCredit_0aef7f4d-b05f-4e82-a6e6-887c02ea685a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_87a3e071-cd5c-4f8d-a944-a7810fb2a74b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_us-gaap_LongTermDebtCurrent_87a3e071-cd5c-4f8d-a944-a7810fb2a74b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:href="rlgy-20190930.xsd#rlgy_LongtermDebtFiscalYearMaturityTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityLineItems_9bb51ea4-2c39-4164-8335-71c1861fe741" xlink:to="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:to="loc_srt_StatementScenarioAxis_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa" xlink:to="loc_srt_ScenarioUnspecifiedDomain_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_bfa5787a-f574-4f03-af48-d7da5d510694" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_5a1bbed8-08f8-4cd5-a1c3-5a0041433ffa" xlink:to="loc_srt_ScenarioUnspecifiedDomain_bfa5787a-f574-4f03-af48-d7da5d510694" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_38cb41ab-f0e3-498d-ac9f-87ca01accbef" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_bfa5787a-f574-4f03-af48-d7da5d510694" xlink:to="loc_srt_ScenarioForecastMember_38cb41ab-f0e3-498d-ac9f-87ca01accbef" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_a7bd64cd-d846-4fac-ad6b-c4a345ebd173" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_a7bd64cd-d846-4fac-ad6b-c4a345ebd173" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_a7bd64cd-d846-4fac-ad6b-c4a345ebd173_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_a7bd64cd-d846-4fac-ad6b-c4a345ebd173" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_a7bd64cd-d846-4fac-ad6b-c4a345ebd173_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_21ba4473-1173-4d4a-8d5b-ecfebb6cd048" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_a7bd64cd-d846-4fac-ad6b-c4a345ebd173" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_21ba4473-1173-4d4a-8d5b-ecfebb6cd048" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_5c171819-83ec-4217-afc3-4c2e06a5b89e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_21ba4473-1173-4d4a-8d5b-ecfebb6cd048" xlink:to="loc_us-gaap_SecuredDebtMember_5c171819-83ec-4217-afc3-4c2e06a5b89e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_562c98b3-50ea-4add-b573-8f1def672cc1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_562c98b3-50ea-4add-b573-8f1def672cc1" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_562c98b3-50ea-4add-b573-8f1def672cc1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_562c98b3-50ea-4add-b573-8f1def672cc1" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_562c98b3-50ea-4add-b573-8f1def672cc1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_8605c5dc-03ec-4f47-ade8-077a2cf0e59e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_562c98b3-50ea-4add-b573-8f1def672cc1" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_8605c5dc-03ec-4f47-ade8-077a2cf0e59e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_c388ae29-e013-4502-a706-b5508ebe11d7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_8605c5dc-03ec-4f47-ade8-077a2cf0e59e" xlink:to="loc_us-gaap_LineOfCreditMember_c388ae29-e013-4502-a706-b5508ebe11d7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_607dcf4d-973c-48a8-a9dd-f1a015a1347a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_LongtermDebtFiscalYearMaturityTable_727495cf-d17b-4d8a-8b64-e1f4fb40d6ec" xlink:to="loc_us-gaap_DebtInstrumentAxis_607dcf4d-973c-48a8-a9dd-f1a015a1347a" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_607dcf4d-973c-48a8-a9dd-f1a015a1347a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_607dcf4d-973c-48a8-a9dd-f1a015a1347a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_607dcf4d-973c-48a8-a9dd-f1a015a1347a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e8700b5f-079c-4506-8fe2-242280b9e091" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_607dcf4d-973c-48a8-a9dd-f1a015a1347a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e8700b5f-079c-4506-8fe2-242280b9e091" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_9f62e296-5af2-4de9-a4ba-8216371d10eb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e8700b5f-079c-4506-8fe2-242280b9e091" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_9f62e296-5af2-4de9-a4ba-8216371d10eb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAMember_4acc8fcd-3e08-4274-bdd5-8f6472e3f1ee" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e8700b5f-079c-4506-8fe2-242280b9e091" xlink:to="loc_rlgy_TermLoanAMember_4acc8fcd-3e08-4274-bdd5-8f6472e3f1ee" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanBFacilityMember_ac4ace70-a01d-43af-8279-a35df2eb6014" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanBFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e8700b5f-079c-4506-8fe2-242280b9e091" xlink:to="loc_rlgy_TermLoanBFacilityMember_ac4ace70-a01d-43af-8279-a35df2eb6014" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtSeniorSecuredCreditFacilityDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtSeniorSecuredCreditFacilityDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtSeniorSecuredCreditFacilityDetails" xlink:type="extended" id="i92751f28b3af4d1dadd4848efc9d65d3_fb904c87-d6b1-4b15-b8de-006573e16c3c">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchaseAmount_3f6602f2-32f5-489c-b83a-028810ff7613" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRepurchaseAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_DebtInstrumentRepurchaseAmount_3f6602f2-32f5-489c-b83a-028810ff7613" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_af3c3726-002c-4f11-b526-95cfdec640e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_af3c3726-002c-4f11-b526-95cfdec640e4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3c609afd-56b4-4d3a-872b-153f5a521f2a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3c609afd-56b4-4d3a-872b-153f5a521f2a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_18b06b6a-581d-4688-9906-86c078460376" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_18b06b6a-581d-4688-9906-86c078460376" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_a9fae6bc-b0a7-4030-b760-b5d7a7721443" xlink:href="rlgy-20190930.xsd#rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_a9fae6bc-b0a7-4030-b760-b5d7a7721443" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_e212f945-4b76-449e-af91-f0d97f118495" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_e212f945-4b76-449e-af91-f0d97f118495" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0248e94e-4746-4c04-9ba9-d2ae3a47cdb0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0248e94e-4746-4c04-9ba9-d2ae3a47cdb0" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor_aa9df364-b42f-4c8f-8839-470658f95766" xlink:href="rlgy-20190930.xsd#rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_rlgy_DebtInstrumentBasisSpreadOnVariableRateFloor_aa9df364-b42f-4c8f-8839-470658f95766" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LetterOfCreditBorrowingCapacity_278d1fa1-962c-4311-8ec6-0c5abfc8d208" xlink:href="rlgy-20190930.xsd#rlgy_LetterOfCreditBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_rlgy_LetterOfCreditBorrowingCapacity_278d1fa1-962c-4311-8ec6-0c5abfc8d208" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AdditionalCreditFacilities_d7ce7a5f-370b-4a01-a99a-92a5740dffa6" xlink:href="rlgy-20190930.xsd#rlgy_AdditionalCreditFacilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_rlgy_AdditionalCreditFacilities_d7ce7a5f-370b-4a01-a99a-92a5740dffa6" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_c8b3605f-932b-482b-b2c8-9334cc722944" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_RatioOfIndebtednessToNetCapital1_c8b3605f-932b-482b-b2c8-9334cc722944" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RatioOfIndebtednessToNetCapitalDenominator_f5a3c8c0-5bde-457d-9065-2292b8d9b30a" xlink:href="rlgy-20190930.xsd#rlgy_RatioOfIndebtednessToNetCapitalDenominator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_rlgy_RatioOfIndebtednessToNetCapitalDenominator_f5a3c8c0-5bde-457d-9065-2292b8d9b30a" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6379bb91-692b-48b2-b4b9-a9b2c8e1b144" xlink:to="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_d3c23cdf-0bdf-49a5-8868-19273b2b3d56" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_d3c23cdf-0bdf-49a5-8868-19273b2b3d56" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_d3c23cdf-0bdf-49a5-8868-19273b2b3d56_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_d3c23cdf-0bdf-49a5-8868-19273b2b3d56" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_d3c23cdf-0bdf-49a5-8868-19273b2b3d56_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_8553a42c-82b2-4a8e-a3bb-90e4e37e9893" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_d3c23cdf-0bdf-49a5-8868-19273b2b3d56" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_8553a42c-82b2-4a8e-a3bb-90e4e37e9893" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_0ed67aea-d2dc-4c5e-8ad9-f820c04b5b42" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_8553a42c-82b2-4a8e-a3bb-90e4e37e9893" xlink:to="loc_us-gaap_SecuredDebtMember_0ed67aea-d2dc-4c5e-8ad9-f820c04b5b42" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_84017d12-aed7-4612-b1d9-94d77ba64855" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_84017d12-aed7-4612-b1d9-94d77ba64855" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_84017d12-aed7-4612-b1d9-94d77ba64855_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_84017d12-aed7-4612-b1d9-94d77ba64855" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_84017d12-aed7-4612-b1d9-94d77ba64855_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_ba1aa7ed-1f8b-41a4-92f9-d6bc203c24a4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_84017d12-aed7-4612-b1d9-94d77ba64855" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_ba1aa7ed-1f8b-41a4-92f9-d6bc203c24a4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_49ccbdb8-0d6f-4f59-823d-cb6f53ff50a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_ba1aa7ed-1f8b-41a4-92f9-d6bc203c24a4" xlink:to="loc_us-gaap_LineOfCreditMember_49ccbdb8-0d6f-4f59-823d-cb6f53ff50a7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_51d4ac56-43d8-4fac-9f66-d58e12ef74d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_us-gaap_DebtInstrumentAxis_51d4ac56-43d8-4fac-9f66-d58e12ef74d1" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_51d4ac56-43d8-4fac-9f66-d58e12ef74d1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_51d4ac56-43d8-4fac-9f66-d58e12ef74d1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_51d4ac56-43d8-4fac-9f66-d58e12ef74d1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_69d32526-1786-4362-9a90-a273baeccb9b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_51d4ac56-43d8-4fac-9f66-d58e12ef74d1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_69d32526-1786-4362-9a90-a273baeccb9b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanBFacilityMember_2dcc1e3e-ea09-481d-8f9c-1418067f533d" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanBFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_69d32526-1786-4362-9a90-a273baeccb9b" xlink:to="loc_rlgy_TermLoanBFacilityMember_2dcc1e3e-ea09-481d-8f9c-1418067f533d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_bf219c86-b276-475e-b968-a851a42ec5ad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_69d32526-1786-4362-9a90-a273baeccb9b" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_bf219c86-b276-475e-b968-a851a42ec5ad" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeAxis_957843bf-dad8-41ba-8e53-52ac64495dac" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_rlgy_InterestRateTypeAxis_957843bf-dad8-41ba-8e53-52ac64495dac" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_957843bf-dad8-41ba-8e53-52ac64495dac_default" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_InterestRateTypeAxis_957843bf-dad8-41ba-8e53-52ac64495dac" xlink:to="loc_rlgy_InterestRateTypeDomain_957843bf-dad8-41ba-8e53-52ac64495dac_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_5ba023e8-05f9-43e0-ac31-b689c1143518" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_InterestRateTypeAxis_957843bf-dad8-41ba-8e53-52ac64495dac" xlink:to="loc_rlgy_InterestRateTypeDomain_5ba023e8-05f9-43e0-ac31-b689c1143518" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LiborMember_1f33dbb7-376e-4f6a-b986-96b7cb4bb43f" xlink:href="rlgy-20190930.xsd#rlgy_LiborMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_5ba023e8-05f9-43e0-ac31-b689c1143518" xlink:to="loc_rlgy_LiborMember_1f33dbb7-376e-4f6a-b986-96b7cb4bb43f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AbrMember_fa3c509a-4951-4b65-82c7-52a580bea001" xlink:href="rlgy-20190930.xsd#rlgy_AbrMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_5ba023e8-05f9-43e0-ac31-b689c1143518" xlink:to="loc_rlgy_AbrMember_fa3c509a-4951-4b65-82c7-52a580bea001" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_c05a9f32-9139-417f-9258-32d6a0cc525a" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_c05a9f32-9139-417f-9258-32d6a0cc525a" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_c05a9f32-9139-417f-9258-32d6a0cc525a_default" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_c05a9f32-9139-417f-9258-32d6a0cc525a" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_c05a9f32-9139-417f-9258-32d6a0cc525a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_c05a9f32-9139-417f-9258-32d6a0cc525a" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Greaterthan3.50to1.00Member_190f9c05-1b9d-4965-930f-a39e847ca418" xlink:href="rlgy-20190930.xsd#rlgy_Greaterthan3.50to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:to="loc_rlgy_Greaterthan3.50to1.00Member_190f9c05-1b9d-4965-930f-a39e847ca418" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_abc799aa-014c-4365-ab67-d67ee89c83b5" xlink:href="rlgy-20190930.xsd#rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:to="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_abc799aa-014c-4365-ab67-d67ee89c83b5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member_576cb760-663b-41e8-bacb-67b6a84849cc" xlink:href="rlgy-20190930.xsd#rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:to="loc_rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member_576cb760-663b-41e8-bacb-67b6a84849cc" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthan2.00to1.00Member_a0afcce2-03d7-4d45-bf4c-c9ada927e605" xlink:href="rlgy-20190930.xsd#rlgy_Lessthan2.00to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_542aacee-e6b6-426a-ab11-ba39220bfe42" xlink:to="loc_rlgy_Lessthan2.00to1.00Member_a0afcce2-03d7-4d45-bf4c-c9ada927e605" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_f544510d-bf53-4a6d-8ed5-8e99e7948c95" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_srt_RangeAxis_f544510d-bf53-4a6d-8ed5-8e99e7948c95" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_f544510d-bf53-4a6d-8ed5-8e99e7948c95_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_f544510d-bf53-4a6d-8ed5-8e99e7948c95" xlink:to="loc_srt_RangeMember_f544510d-bf53-4a6d-8ed5-8e99e7948c95_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4e7bde65-c0b3-46c6-8541-61c816d93ee1" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_f544510d-bf53-4a6d-8ed5-8e99e7948c95" xlink:to="loc_srt_RangeMember_4e7bde65-c0b3-46c6-8541-61c816d93ee1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_3006c7fb-b50f-40c9-9570-1feaa8f6f8eb" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4e7bde65-c0b3-46c6-8541-61c816d93ee1" xlink:to="loc_srt_MaximumMember_3006c7fb-b50f-40c9-9570-1feaa8f6f8eb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioAxis_6b424846-6fd8-4267-a077-0babdd4d1210" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7f4b0480-597b-4c4f-8b6c-4a9faa67d4a7" xlink:to="loc_rlgy_DebtCovenantRatioAxis_6b424846-6fd8-4267-a077-0babdd4d1210" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioDomain_6b424846-6fd8-4267-a077-0babdd4d1210_default" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_DebtCovenantRatioAxis_6b424846-6fd8-4267-a077-0babdd4d1210" xlink:to="loc_rlgy_DebtCovenantRatioDomain_6b424846-6fd8-4267-a077-0babdd4d1210_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioDomain_d32c8711-37b8-40da-aa49-5cafa3977876" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_DebtCovenantRatioAxis_6b424846-6fd8-4267-a077-0babdd4d1210" xlink:to="loc_rlgy_DebtCovenantRatioDomain_d32c8711-37b8-40da-aa49-5cafa3977876" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember_0dba4161-0fdb-4e83-aef9-5eb72a754d49" xlink:href="rlgy-20190930.xsd#rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_DebtCovenantRatioDomain_d32c8711-37b8-40da-aa49-5cafa3977876" xlink:to="loc_rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember_0dba4161-0fdb-4e83-aef9-5eb72a754d49" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RequiredCovenantRatioMember_70c436f9-b75d-4ee7-9dc6-1c665cfe6d52" xlink:href="rlgy-20190930.xsd#rlgy_RequiredCovenantRatioMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_DebtCovenantRatioDomain_d32c8711-37b8-40da-aa49-5cafa3977876" xlink:to="loc_rlgy_RequiredCovenantRatioMember_70c436f9-b75d-4ee7-9dc6-1c665cfe6d52" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtTermLoanAFacilityDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtTermLoanAFacilityDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtTermLoanAFacilityDetails" xlink:type="extended" id="i6e8cf76dfa1c459e863903ccb57530aa_60f691e3-5ec4-4c0d-ad84-68550e879215">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchaseAmount_e0954996-2207-426d-bf5e-b1891c9fe991" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRepurchaseAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_us-gaap_DebtInstrumentRepurchaseAmount_e0954996-2207-426d-bf5e-b1891c9fe991" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_ba5de1ee-0b46-4114-98b0-efcee45849f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_ba5de1ee-0b46-4114-98b0-efcee45849f8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_77e80f2d-7628-4f99-9e74-2ed0b876a24c" xlink:href="rlgy-20190930.xsd#rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_rlgy_Annualpercentageoforiginalprincipalamountforquarterlyamortizationpayments_77e80f2d-7628-4f99-9e74-2ed0b876a24c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_a7c28460-5aae-42bf-8476-dc4f9802ec48" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_a7c28460-5aae-42bf-8476-dc4f9802ec48" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AdditionalCreditFacilities_64fca0fb-88b9-4b7b-98bd-12b0edd0f9f1" xlink:href="rlgy-20190930.xsd#rlgy_AdditionalCreditFacilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_rlgy_AdditionalCreditFacilities_64fca0fb-88b9-4b7b-98bd-12b0edd0f9f1" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_58ec9a2f-e7a2-43b9-b991-6cbac477f1e2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_us-gaap_RatioOfIndebtednessToNetCapital1_58ec9a2f-e7a2-43b9-b991-6cbac477f1e2" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RatioOfIndebtednessToNetCapitalDenominator_6c2a8353-07a6-457a-940d-76c29c67d01e" xlink:href="rlgy-20190930.xsd#rlgy_RatioOfIndebtednessToNetCapitalDenominator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_rlgy_RatioOfIndebtednessToNetCapitalDenominator_6c2a8353-07a6-457a-940d-76c29c67d01e" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_02fdc438-b73c-4151-bb21-62d2d8ce8806" xlink:to="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_us-gaap_DebtInstrumentAxis_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_10605f77-bb64-419a-b374-e9af00bd7c91" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_9e301ec9-6d32-4a3c-8fdc-9093faa8d75c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_10605f77-bb64-419a-b374-e9af00bd7c91" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAMember_056fa9f5-ed2c-4f8e-a506-1ce67ceb524b" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_10605f77-bb64-419a-b374-e9af00bd7c91" xlink:to="loc_rlgy_TermLoanAMember_056fa9f5-ed2c-4f8e-a506-1ce67ceb524b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanA1Member_48a3bdbd-e835-42fd-86fa-d92dae045881" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanA1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_10605f77-bb64-419a-b374-e9af00bd7c91" xlink:to="loc_rlgy_TermLoanA1Member_48a3bdbd-e835-42fd-86fa-d92dae045881" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TermLoanAFacilityMember_4266ed49-33b4-48f6-b3a2-5f85bebd4986" xlink:href="rlgy-20190930.xsd#rlgy_TermLoanAFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_10605f77-bb64-419a-b374-e9af00bd7c91" xlink:to="loc_rlgy_TermLoanAFacilityMember_4266ed49-33b4-48f6-b3a2-5f85bebd4986" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_de280c40-4df1-4b1a-ad31-1d1ed6578524" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_de280c40-4df1-4b1a-ad31-1d1ed6578524" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_de280c40-4df1-4b1a-ad31-1d1ed6578524_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_de280c40-4df1-4b1a-ad31-1d1ed6578524" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_de280c40-4df1-4b1a-ad31-1d1ed6578524_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f654670c-1ebb-4ff9-9d1e-f3a3beffca54" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_de280c40-4df1-4b1a-ad31-1d1ed6578524" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f654670c-1ebb-4ff9-9d1e-f3a3beffca54" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_4d170171-68df-4d1a-aeea-40be162a4b80" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f654670c-1ebb-4ff9-9d1e-f3a3beffca54" xlink:to="loc_us-gaap_SecuredDebtMember_4d170171-68df-4d1a-aeea-40be162a4b80" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_eacc7337-7027-4bf7-8ee4-0e63d9c27419" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentYearsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_eacc7337-7027-4bf7-8ee4-0e63d9c27419" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_eacc7337-7027-4bf7-8ee4-0e63d9c27419_default" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentsYearsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_eacc7337-7027-4bf7-8ee4-0e63d9c27419" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_eacc7337-7027-4bf7-8ee4-0e63d9c27419_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:href="rlgy-20190930.xsd#rlgy_QuarterlyAmortizationPaymentsYearsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentYearsAxis_eacc7337-7027-4bf7-8ee4-0e63d9c27419" xlink:to="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2018Member_cc556359-e8e5-498f-9e32-66641f3e269b" xlink:href="rlgy-20190930.xsd#rlgy_A2018Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:to="loc_rlgy_A2018Member_cc556359-e8e5-498f-9e32-66641f3e269b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2019Member_e168ba83-1495-493c-8932-17df4722eee3" xlink:href="rlgy-20190930.xsd#rlgy_A2019Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:to="loc_rlgy_A2019Member_e168ba83-1495-493c-8932-17df4722eee3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2020Member_a3391031-19e3-453b-9547-fd453ebec75f" xlink:href="rlgy-20190930.xsd#rlgy_A2020Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:to="loc_rlgy_A2020Member_a3391031-19e3-453b-9547-fd453ebec75f" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2021Member_5e0c24af-51bb-4e57-9232-bcaddcaecffe" xlink:href="rlgy-20190930.xsd#rlgy_A2021Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:to="loc_rlgy_A2021Member_5e0c24af-51bb-4e57-9232-bcaddcaecffe" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2022Member_7017827a-5d91-41ba-a1b0-6a288e9c7a74" xlink:href="rlgy-20190930.xsd#rlgy_A2022Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_QuarterlyAmortizationPaymentsYearsDomain_fa355991-948a-4837-b2ed-7b0849a5964a" xlink:to="loc_rlgy_A2022Member_7017827a-5d91-41ba-a1b0-6a288e9c7a74" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_d6008d6c-71f3-4971-a341-65142e0e193c" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_d6008d6c-71f3-4971-a341-65142e0e193c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_d6008d6c-71f3-4971-a341-65142e0e193c_default" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_d6008d6c-71f3-4971-a341-65142e0e193c" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_d6008d6c-71f3-4971-a341-65142e0e193c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:href="rlgy-20190930.xsd#rlgy_SeniorSecuredLeverageRatioScenarioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioAxis_d6008d6c-71f3-4971-a341-65142e0e193c" xlink:to="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Greaterthan3.50to1.00Member_77f14fc4-e5af-410a-88a0-7024b9172ac0" xlink:href="rlgy-20190930.xsd#rlgy_Greaterthan3.50to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:to="loc_rlgy_Greaterthan3.50to1.00Member_77f14fc4-e5af-410a-88a0-7024b9172ac0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_ea562cab-7ea2-416c-8734-ccddea30b2ee" xlink:href="rlgy-20190930.xsd#rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:to="loc_rlgy_Lessthanorequalto3.50to1.00butgreaterthanorequalto2.50to1.00Member_ea562cab-7ea2-416c-8734-ccddea30b2ee" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member_3bcab305-5969-4f13-8b0a-dcdf5620baa9" xlink:href="rlgy-20190930.xsd#rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:to="loc_rlgy_Lessthan2.50to1.00butgreaterthanorequalto2.00to1.00Member_3bcab305-5969-4f13-8b0a-dcdf5620baa9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Lessthan2.00to1.00Member_39fe73d7-a9ae-4989-b27e-3b5ed1d98edc" xlink:href="rlgy-20190930.xsd#rlgy_Lessthan2.00to1.00Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_SeniorSecuredLeverageRatioScenarioDomain_acdc825d-23f4-4273-92e1-83ef6957ae23" xlink:to="loc_rlgy_Lessthan2.00to1.00Member_39fe73d7-a9ae-4989-b27e-3b5ed1d98edc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeAxis_ec60a825-b5a9-464c-8636-dc49d0838fff" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_rlgy_InterestRateTypeAxis_ec60a825-b5a9-464c-8636-dc49d0838fff" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_ec60a825-b5a9-464c-8636-dc49d0838fff_default" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_InterestRateTypeAxis_ec60a825-b5a9-464c-8636-dc49d0838fff" xlink:to="loc_rlgy_InterestRateTypeDomain_ec60a825-b5a9-464c-8636-dc49d0838fff_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InterestRateTypeDomain_3cd807aa-e7bf-4d44-a6cb-8723cfa5be91" xlink:href="rlgy-20190930.xsd#rlgy_InterestRateTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_InterestRateTypeAxis_ec60a825-b5a9-464c-8636-dc49d0838fff" xlink:to="loc_rlgy_InterestRateTypeDomain_3cd807aa-e7bf-4d44-a6cb-8723cfa5be91" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LiborMember_5d589f68-62fc-446b-bfcb-f09baa27db06" xlink:href="rlgy-20190930.xsd#rlgy_LiborMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_3cd807aa-e7bf-4d44-a6cb-8723cfa5be91" xlink:to="loc_rlgy_LiborMember_5d589f68-62fc-446b-bfcb-f09baa27db06" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AbrMember_d8e0db36-368d-4a5f-a9c2-3256530808af" xlink:href="rlgy-20190930.xsd#rlgy_AbrMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_InterestRateTypeDomain_3cd807aa-e7bf-4d44-a6cb-8723cfa5be91" xlink:to="loc_rlgy_AbrMember_d8e0db36-368d-4a5f-a9c2-3256530808af" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioAxis_ee2c8880-5416-49c2-9236-5f894444156d" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_rlgy_DebtCovenantRatioAxis_ee2c8880-5416-49c2-9236-5f894444156d" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioDomain_ee2c8880-5416-49c2-9236-5f894444156d_default" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_DebtCovenantRatioAxis_ee2c8880-5416-49c2-9236-5f894444156d" xlink:to="loc_rlgy_DebtCovenantRatioDomain_ee2c8880-5416-49c2-9236-5f894444156d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DebtCovenantRatioDomain_64e25fc1-23b9-423e-a759-79234dc8c8ae" xlink:href="rlgy-20190930.xsd#rlgy_DebtCovenantRatioDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_DebtCovenantRatioAxis_ee2c8880-5416-49c2-9236-5f894444156d" xlink:to="loc_rlgy_DebtCovenantRatioDomain_64e25fc1-23b9-423e-a759-79234dc8c8ae" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember_8cde4456-7aa9-48fa-b5db-08222cbf4d81" xlink:href="rlgy-20190930.xsd#rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_DebtCovenantRatioDomain_64e25fc1-23b9-423e-a759-79234dc8c8ae" xlink:to="loc_rlgy_RequiredCovenantRatioToReceiveAdditionalCreditFacilitiesMember_8cde4456-7aa9-48fa-b5db-08222cbf4d81" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_5a5e2460-42f8-4a9e-8832-2dd305f6563c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_39447af6-50e9-4e6e-a31f-7af53edad4a7" xlink:to="loc_srt_RangeAxis_5a5e2460-42f8-4a9e-8832-2dd305f6563c" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5a5e2460-42f8-4a9e-8832-2dd305f6563c_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_5a5e2460-42f8-4a9e-8832-2dd305f6563c" xlink:to="loc_srt_RangeMember_5a5e2460-42f8-4a9e-8832-2dd305f6563c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_17b3f951-5d09-4402-99a4-74d0458fa592" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_5a5e2460-42f8-4a9e-8832-2dd305f6563c" xlink:to="loc_srt_RangeMember_17b3f951-5d09-4402-99a4-74d0458fa592" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d7a5ebae-7abd-49ba-abd5-11f98c953a3e" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_17b3f951-5d09-4402-99a4-74d0458fa592" xlink:to="loc_srt_MaximumMember_d7a5ebae-7abd-49ba-abd5-11f98c953a3e" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtUnsecuredNotesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtUnsecuredNotesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtUnsecuredNotesDetails" xlink:type="extended" id="i97b528df919d41c39053bbe8e3f08ab0_da253450-72f1-452a-8746-cb0acc2c6795">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_3506d8d1-48a1-410d-b1fc-3b8c2cc7679a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_3506d8d1-48a1-410d-b1fc-3b8c2cc7679a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_96a053d3-a4be-4d4d-8952-9cd7a7b592af" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_96a053d3-a4be-4d4d-8952-9cd7a7b592af" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchaseAmount_3369d17c-f0d8-4539-a2ad-04e8fc144ed7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRepurchaseAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_us-gaap_DebtInstrumentRepurchaseAmount_3369d17c-f0d8-4539-a2ad-04e8fc144ed7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_772397c5-bece-4741-9717-ac736be3fa5e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_us-gaap_RepaymentsOfDebt_772397c5-bece-4741-9717-ac736be3fa5e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AmountthatthecumulativecreditbasketforrestrictedpaymentswasresettoonJanuary12019_4bc050e2-bdf3-4e75-aa5b-aa854237e15e" xlink:href="rlgy-20190930.xsd#rlgy_AmountthatthecumulativecreditbasketforrestrictedpaymentswasresettoonJanuary12019"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_AmountthatthecumulativecreditbasketforrestrictedpaymentswasresettoonJanuary12019_4bc050e2-bdf3-4e75-aa5b-aa854237e15e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioisequaltoorgreaterthan4.0to1.0_06a8be6e-06dc-47f0-a4a8-022ab07ddfac" xlink:href="rlgy-20190930.xsd#rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioisequaltoorgreaterthan4.0to1.0"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioisequaltoorgreaterthan4.0to1.0_06a8be6e-06dc-47f0-a4a8-022ab07ddfac" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildNumerator_50a39e34-5549-4549-969c-f4f1bd3d9de9" xlink:href="rlgy-20190930.xsd#rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildNumerator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildNumerator_50a39e34-5549-4549-969c-f4f1bd3d9de9" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildDenominator_ce6e88b9-070a-49af-8435-75eb03a24298" xlink:href="rlgy-20190930.xsd#rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildDenominator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_ConsolidatedLeverageRatioConsolidatedNetIncomeBuildDenominator_ce6e88b9-070a-49af-8435-75eb03a24298" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioislessthan4.0to1.0_6505420d-e5ca-4689-a9c7-0b1d0b86e2e0" xlink:href="rlgy-20190930.xsd#rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioislessthan4.0to1.0"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_CumulativeCreditBasketincreaseasaofConsolidatedNetIncomewhentheconsolidatedleverageratioislessthan4.0to1.0_6505420d-e5ca-4689-a9c7-0b1d0b86e2e0" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Percentofthedeficitbywhichthecumulativecreditbasketisreducedwhenconsolidatednetincomeisinadeficitposition_ecd8088d-ba50-4d59-b32c-86201940f0c2" xlink:href="rlgy-20190930.xsd#rlgy_Percentofthedeficitbywhichthecumulativecreditbasketisreducedwhenconsolidatednetincomeisinadeficitposition"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_Percentofthedeficitbywhichthecumulativecreditbasketisreducedwhenconsolidatednetincomeisinadeficitposition_ecd8088d-ba50-4d59-b32c-86201940f0c2" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Generalrestrictedpaymentbasketmaybeusedonlyforrestrictedinvestmentsasdefinedintheindenturetothe9.375notes_175e0771-a136-4824-b93f-ef1e89dc6cb3" xlink:href="rlgy-20190930.xsd#rlgy_Generalrestrictedpaymentbasketmaybeusedonlyforrestrictedinvestmentsasdefinedintheindenturetothe9.375notes"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_Generalrestrictedpaymentbasketmaybeusedonlyforrestrictedinvestmentsasdefinedintheindenturetothe9.375notes_175e0771-a136-4824-b93f-ef1e89dc6cb3" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ConsolidatedLeverageRatioUnlimitedGeneralRestrictedPaymentBasketNumerator_b99a9ef7-b151-43a7-94da-e6b6534bb648" xlink:href="rlgy-20190930.xsd#rlgy_ConsolidatedLeverageRatioUnlimitedGeneralRestrictedPaymentBasketNumerator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_ConsolidatedLeverageRatioUnlimitedGeneralRestrictedPaymentBasketNumerator_b99a9ef7-b151-43a7-94da-e6b6534bb648" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ConsolidatedLeverageRatioUnlimitedRestrictedPaymentBasketDenominator_078af9db-c77a-4a20-8aac-740a0f5018ae" xlink:href="rlgy-20190930.xsd#rlgy_ConsolidatedLeverageRatioUnlimitedRestrictedPaymentBasketDenominator"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_ConsolidatedLeverageRatioUnlimitedRestrictedPaymentBasketDenominator_078af9db-c77a-4a20-8aac-740a0f5018ae" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Maxamountofsharesrepurchasedanddividendsdeclaredperyearunderthe9.375CreditAgreement_207eaebb-ed05-448e-8cad-acc40260e8dc" xlink:href="rlgy-20190930.xsd#rlgy_Maxamountofsharesrepurchasedanddividendsdeclaredperyearunderthe9.375CreditAgreement"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_Maxamountofsharesrepurchasedanddividendsdeclaredperyearunderthe9.375CreditAgreement_207eaebb-ed05-448e-8cad-acc40260e8dc" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_NetDebtSeasonalityAdjustment_6461ac22-b88f-41dd-9c02-612d21a33e4f" xlink:href="rlgy-20190930.xsd#rlgy_NetDebtSeasonalityAdjustment"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_rlgy_NetDebtSeasonalityAdjustment_6461ac22-b88f-41dd-9c02-612d21a33e4f" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_eed0d866-d41d-442f-989d-87629d4455b2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_23b2c071-4116-4878-aaa9-f8272e658d9b" xlink:to="loc_us-gaap_DebtInstrumentTable_eed0d866-d41d-442f-989d-87629d4455b2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_0d9822a4-59a2-4197-9744-f30d8d99ed32" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_eed0d866-d41d-442f-989d-87629d4455b2" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_0d9822a4-59a2-4197-9744-f30d8d99ed32" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0d9822a4-59a2-4197-9744-f30d8d99ed32_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_0d9822a4-59a2-4197-9744-f30d8d99ed32" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0d9822a4-59a2-4197-9744-f30d8d99ed32_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_16d280c5-b56c-4d0b-8ac3-016241783baa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_0d9822a4-59a2-4197-9744-f30d8d99ed32" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_16d280c5-b56c-4d0b-8ac3-016241783baa" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_30f8c33e-d52c-47a2-9313-119418d1eb70" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_16d280c5-b56c-4d0b-8ac3-016241783baa" xlink:to="loc_us-gaap_SeniorNotesMember_30f8c33e-d52c-47a2-9313-119418d1eb70" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_ddb1a911-b74e-402c-916c-f9273d4db455" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_eed0d866-d41d-442f-989d-87629d4455b2" xlink:to="loc_us-gaap_DebtInstrumentAxis_ddb1a911-b74e-402c-916c-f9273d4db455" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_ddb1a911-b74e-402c-916c-f9273d4db455_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_ddb1a911-b74e-402c-916c-f9273d4db455" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_ddb1a911-b74e-402c-916c-f9273d4db455_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_ddb1a911-b74e-402c-916c-f9273d4db455" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.50SeniorNotesMember_0e25af07-4635-428c-a06e-889d2dce2860" xlink:href="rlgy-20190930.xsd#rlgy_A4.50SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:to="loc_rlgy_A4.50SeniorNotesMember_0e25af07-4635-428c-a06e-889d2dce2860" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A9.375SeniorNotesMember_38396bb0-a9af-454c-891f-269b2c298ca3" xlink:href="rlgy-20190930.xsd#rlgy_A9.375SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:to="loc_rlgy_A9.375SeniorNotesMember_38396bb0-a9af-454c-891f-269b2c298ca3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_88d1dbb6-1e6c-43be-a025-9a5dabb04027" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_88d1dbb6-1e6c-43be-a025-9a5dabb04027" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A5.25SeniorNotesMember_45f1f6c3-7c79-495b-88ac-2087a22fb152" xlink:href="rlgy-20190930.xsd#rlgy_A5.25SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:to="loc_rlgy_A5.25SeniorNotesMember_45f1f6c3-7c79-495b-88ac-2087a22fb152" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A4.875SeniorNotesMember_5947c6d4-2ed0-44cc-afc3-a9c99be330be" xlink:href="rlgy-20190930.xsd#rlgy_A4.875SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a29f3fa3-a9e9-46e9-adc5-9b04ab3aaf37" xlink:to="loc_rlgy_A4.875SeniorNotesMember_5947c6d4-2ed0-44cc-afc3-a9c99be330be" xlink:type="arc" order="4"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtOtherDebtFacilitiesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtOtherDebtFacilitiesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtOtherDebtFacilitiesDetails" xlink:type="extended" id="i257997a35212483e99cf8a210a64567e_5702770e-9691-4f30-a4cd-39edc7865abe">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_2a92ad9d-9935-4269-ae89-16b0a0e8844b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LetterOfCreditBorrowingCapacity_6752da94-760f-4051-b5bd-a39433c280f0" xlink:href="rlgy-20190930.xsd#rlgy_LetterOfCreditBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2a92ad9d-9935-4269-ae89-16b0a0e8844b" xlink:to="loc_rlgy_LetterOfCreditBorrowingCapacity_6752da94-760f-4051-b5bd-a39433c280f0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_1086513e-e9f4-4fcf-8575-576dcb75a038" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2a92ad9d-9935-4269-ae89-16b0a0e8844b" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_1086513e-e9f4-4fcf-8575-576dcb75a038" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_7ff32af0-a7a2-4a11-8262-74ea6b08128a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2a92ad9d-9935-4269-ae89-16b0a0e8844b" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_7ff32af0-a7a2-4a11-8262-74ea6b08128a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_80522490-3447-4415-921f-0ed77fd3788a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_7ff32af0-a7a2-4a11-8262-74ea6b08128a" xlink:to="loc_us-gaap_CreditFacilityAxis_80522490-3447-4415-921f-0ed77fd3788a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_80522490-3447-4415-921f-0ed77fd3788a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_80522490-3447-4415-921f-0ed77fd3788a" xlink:to="loc_us-gaap_CreditFacilityDomain_80522490-3447-4415-921f-0ed77fd3788a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_365c7399-5cff-44f7-8139-670abb1eae11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_80522490-3447-4415-921f-0ed77fd3788a" xlink:to="loc_us-gaap_CreditFacilityDomain_365c7399-5cff-44f7-8139-670abb1eae11" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_UnsecuredLetterofCreditFacilityMember_951c7a71-6b39-43e5-97fd-5c1e479431e0" xlink:href="rlgy-20190930.xsd#rlgy_UnsecuredLetterofCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_365c7399-5cff-44f7-8139-670abb1eae11" xlink:to="loc_rlgy_UnsecuredLetterofCreditFacilityMember_951c7a71-6b39-43e5-97fd-5c1e479431e0" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtSecuritizationObligationsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtSecuritizationObligationsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtSecuritizationObligationsDetails" xlink:type="extended" id="ib2bc6d6c3c354f17b8788ff515bd3b5c_cef558b2-2a3b-4791-bfcc-878d7087d052">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizedObligationMaximumBorrowingCapacity_e8461e05-ea17-49c3-a248-cde89f35a590" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizedObligationMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_rlgy_SecuritizedObligationMaximumBorrowingCapacity_e8461e05-ea17-49c3-a248-cde89f35a590" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_d00f0637-1345-4c1e-9d0d-1450592efca7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSecuredFinancings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_us-gaap_OtherSecuredFinancings_d00f0637-1345-4c1e-9d0d-1450592efca7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_Relocationreceivablesandotherrelatedrelocationassetsthatcollateralizesecuritizationobligations_9a3f8557-399b-4c88-964f-7d7fc46369cf" xlink:href="rlgy-20190930.xsd#rlgy_Relocationreceivablesandotherrelatedrelocationassetsthatcollateralizesecuritizationobligations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_rlgy_Relocationreceivablesandotherrelatedrelocationassetsthatcollateralizesecuritizationobligations_9a3f8557-399b-4c88-964f-7d7fc46369cf" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_0a3f4594-ccfb-4cb7-aa0c-f675713e3a24" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_us-gaap_InterestExpenseDebt_0a3f4594-ccfb-4cb7-aa0c-f675713e3a24" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_742091f9-43b7-4dd6-899e-eb57777e9543" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_742091f9-43b7-4dd6-899e-eb57777e9543" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_1cb2c54c-25b7-4775-893c-94223eb4e392" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb57e5d2-b598-48c9-b33e-f4c57815082d" xlink:to="loc_us-gaap_DebtInstrumentTable_1cb2c54c-25b7-4775-893c-94223eb4e392" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_da9f8632-d743-4864-925f-7b157446bbad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1cb2c54c-25b7-4775-893c-94223eb4e392" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_da9f8632-d743-4864-925f-7b157446bbad" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_da9f8632-d743-4864-925f-7b157446bbad_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_da9f8632-d743-4864-925f-7b157446bbad" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_da9f8632-d743-4864-925f-7b157446bbad_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_123fc952-cc0d-437b-a341-d50f3451131e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_da9f8632-d743-4864-925f-7b157446bbad" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_123fc952-cc0d-437b-a341-d50f3451131e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SecuritizationobligationMember_679d92c6-fc05-41a6-9d2c-9cd1dedf5cb1" xlink:href="rlgy-20190930.xsd#rlgy_SecuritizationobligationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_123fc952-cc0d-437b-a341-d50f3451131e" xlink:to="loc_rlgy_SecuritizationobligationMember_679d92c6-fc05-41a6-9d2c-9cd1dedf5cb1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_83407d56-0545-49ee-9df1-1e498ab895d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1cb2c54c-25b7-4775-893c-94223eb4e392" xlink:to="loc_us-gaap_DebtInstrumentAxis_83407d56-0545-49ee-9df1-1e498ab895d4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_83407d56-0545-49ee-9df1-1e498ab895d4_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_83407d56-0545-49ee-9df1-1e498ab895d4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_83407d56-0545-49ee-9df1-1e498ab895d4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b6747127-5841-40d3-89a4-da16455e47ce" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_83407d56-0545-49ee-9df1-1e498ab895d4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b6747127-5841-40d3-89a4-da16455e47ce" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AppleRidgeFundingLlcMember_2b82302d-a66c-4508-9f17-8d324cb5a9b7" xlink:href="rlgy-20190930.xsd#rlgy_AppleRidgeFundingLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b6747127-5841-40d3-89a4-da16455e47ce" xlink:to="loc_rlgy_AppleRidgeFundingLlcMember_2b82302d-a66c-4508-9f17-8d324cb5a9b7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CartusFinancingLimitedMember_901abd5c-6cb1-4ff7-9483-9500a7f10bdb" xlink:href="rlgy-20190930.xsd#rlgy_CartusFinancingLimitedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b6747127-5841-40d3-89a4-da16455e47ce" xlink:to="loc_rlgy_CartusFinancingLimitedMember_901abd5c-6cb1-4ff7-9483-9500a7f10bdb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_3b957cf2-b127-4aa0-aecd-595a7f3d782d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1cb2c54c-25b7-4775-893c-94223eb4e392" xlink:to="loc_us-gaap_CreditFacilityAxis_3b957cf2-b127-4aa0-aecd-595a7f3d782d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_3b957cf2-b127-4aa0-aecd-595a7f3d782d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_3b957cf2-b127-4aa0-aecd-595a7f3d782d" xlink:to="loc_us-gaap_CreditFacilityDomain_3b957cf2-b127-4aa0-aecd-595a7f3d782d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_473df452-b3fb-4029-8253-0b8ef24bd7e0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_3b957cf2-b127-4aa0-aecd-595a7f3d782d" xlink:to="loc_us-gaap_CreditFacilityDomain_473df452-b3fb-4029-8253-0b8ef24bd7e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_863a8232-ce0b-4971-ac91-052bfb44f4a6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_473df452-b3fb-4029-8253-0b8ef24bd7e0" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_863a8232-ce0b-4971-ac91-052bfb44f4a6" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_WorkingCapitalFacilityMember_d084cade-0553-4afb-aa9e-b2cd382a9960" xlink:href="rlgy-20190930.xsd#rlgy_WorkingCapitalFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_473df452-b3fb-4029-8253-0b8ef24bd7e0" xlink:to="loc_rlgy_WorkingCapitalFacilityMember_d084cade-0553-4afb-aa9e-b2cd382a9960" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/ShortAndLongTermDebtLossontheEarlyExtinguishmentofDebtandWriteOffofFinancingCostsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#ShortAndLongTermDebtLossontheEarlyExtinguishmentofDebtandWriteOffofFinancingCostsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/ShortAndLongTermDebtLossontheEarlyExtinguishmentofDebtandWriteOffofFinancingCostsDetails" xlink:type="extended" id="iaf69a0743e4a4af8bf8e69cac6f5dad0_73818dc7-c6fe-4b94-8cf3-8b0e4feef95f"/>
<link:roleRef roleURI="http://www.realogy.com/role/RestructuringCostsRestructuringCosts" xlink:type="simple" xlink:href="rlgy-20190930.xsd#RestructuringCostsRestructuringCosts"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/RestructuringCostsRestructuringCosts" xlink:type="extended" id="if0ecda3cde3045a58557e072f6823759_17fa1bd1-3c46-4837-958e-af1cce93d1c9"/>
<link:roleRef roleURI="http://www.realogy.com/role/RestructuringCostsRestructuringCostsTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#RestructuringCostsRestructuringCostsTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/RestructuringCostsRestructuringCostsTables" xlink:type="extended" id="i320ce11f35a547e39637b7c1a71b6213_d3cadb41-f3fb-4e73-a31d-51f26921659f"/>
<link:roleRef roleURI="http://www.realogy.com/role/RestructuringCostsRestructuringCostsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#RestructuringCostsRestructuringCostsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/RestructuringCostsRestructuringCostsDetails" xlink:type="extended" id="ia8f173fdd74f44ebbb3a207b76ddb642_293bbf93-c101-46b8-adca-9bb4ba39d6ad">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_e79743f1-b3a3-4f17-968e-cd5c6d00e4cf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_1f95c951-9d69-41c8-9cf6-3a03e603469c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_e79743f1-b3a3-4f17-968e-cd5c6d00e4cf" xlink:to="loc_us-gaap_RestructuringCharges_1f95c951-9d69-41c8-9cf6-3a03e603469c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_73d57657-3f68-414e-b66e-91299d1301a8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_e79743f1-b3a3-4f17-968e-cd5c6d00e4cf" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_73d57657-3f68-414e-b66e-91299d1301a8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_aea56946-dfd1-4d6d-bb1f-d050c42fabbf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_73d57657-3f68-414e-b66e-91299d1301a8" xlink:to="loc_us-gaap_RestructuringPlanAxis_aea56946-dfd1-4d6d-bb1f-d050c42fabbf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_aea56946-dfd1-4d6d-bb1f-d050c42fabbf_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_aea56946-dfd1-4d6d-bb1f-d050c42fabbf" xlink:to="loc_us-gaap_RestructuringPlanDomain_aea56946-dfd1-4d6d-bb1f-d050c42fabbf_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_7230ed26-99b0-42a4-8d38-5fc5f5c002c6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_aea56946-dfd1-4d6d-bb1f-d050c42fabbf" xlink:to="loc_us-gaap_RestructuringPlanDomain_7230ed26-99b0-42a4-8d38-5fc5f5c002c6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OperationalEfficienciesProgramMember_18f5827f-c771-47e4-ba8d-8e55d0be1697" xlink:href="rlgy-20190930.xsd#rlgy_OperationalEfficienciesProgramMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_7230ed26-99b0-42a4-8d38-5fc5f5c002c6" xlink:to="loc_rlgy_OperationalEfficienciesProgramMember_18f5827f-c771-47e4-ba8d-8e55d0be1697" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LeadershipRealignmentMember_8ddf4918-3818-40c6-a31f-8b1d84e53777" xlink:href="rlgy-20190930.xsd#rlgy_LeadershipRealignmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_7230ed26-99b0-42a4-8d38-5fc5f5c002c6" xlink:to="loc_rlgy_LeadershipRealignmentMember_8ddf4918-3818-40c6-a31f-8b1d84e53777" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_6714fad7-c759-45f4-88ba-5001d9a341f7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_73d57657-3f68-414e-b66e-91299d1301a8" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_6714fad7-c759-45f4-88ba-5001d9a341f7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_6714fad7-c759-45f4-88ba-5001d9a341f7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_6714fad7-c759-45f4-88ba-5001d9a341f7" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_6714fad7-c759-45f4-88ba-5001d9a341f7_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_f4fddf1e-e028-4c5b-a3bd-d5ad8fd7956f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_6714fad7-c759-45f4-88ba-5001d9a341f7" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_f4fddf1e-e028-4c5b-a3bd-d5ad8fd7956f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_PersonnelRelatedMember_bfd6e868-713e-4704-a5e4-bf05801514b5" xlink:href="rlgy-20190930.xsd#rlgy_PersonnelRelatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_f4fddf1e-e028-4c5b-a3bd-d5ad8fd7956f" xlink:to="loc_rlgy_PersonnelRelatedMember_bfd6e868-713e-4704-a5e4-bf05801514b5" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FacilityRelatedMember_248ad702-3e26-485c-8be6-36ccae369f2d" xlink:href="rlgy-20190930.xsd#rlgy_FacilityRelatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_f4fddf1e-e028-4c5b-a3bd-d5ad8fd7956f" xlink:to="loc_rlgy_FacilityRelatedMember_248ad702-3e26-485c-8be6-36ccae369f2d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_InternalUseSoftwareImpairmentMember_0ae640f1-baad-4c7a-820b-04589629be8e" xlink:href="rlgy-20190930.xsd#rlgy_InternalUseSoftwareImpairmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_f4fddf1e-e028-4c5b-a3bd-d5ad8fd7956f" xlink:to="loc_rlgy_InternalUseSoftwareImpairmentMember_0ae640f1-baad-4c7a-820b-04589629be8e" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/RestructuringCostsFacilityandOperationalEfficienciesProgramDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#RestructuringCostsFacilityandOperationalEfficienciesProgramDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/RestructuringCostsFacilityandOperationalEfficienciesProgramDetails" xlink:type="extended" id="ic570d2c0673745a8a4143944ceceff7a_17f68b92-e13e-46f1-a621-c2a494d25df6">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_6f5c74cd-5df8-423b-8c5e-7b1c3485d753" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_d4bbdd22-c23f-4c09-b34b-a81dcdf4edc6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveRollForward"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6f5c74cd-5df8-423b-8c5e-7b1c3485d753" xlink:to="loc_us-gaap_RestructuringReserveRollForward_d4bbdd22-c23f-4c09-b34b-a81dcdf4edc6" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_72d7f161-a590-4daa-9802-28c774430519" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_d4bbdd22-c23f-4c09-b34b-a81dcdf4edc6" xlink:to="loc_us-gaap_RestructuringReserve_72d7f161-a590-4daa-9802-28c774430519" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_79f469f1-fe52-4a51-8921-281daa7bd800" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_d4bbdd22-c23f-4c09-b34b-a81dcdf4edc6" xlink:to="loc_us-gaap_RestructuringCharges_79f469f1-fe52-4a51-8921-281daa7bd800" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInRestructuringReserve_5df91a6a-8ced-43f2-a45a-71582fa7d15e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInRestructuringReserve"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_d4bbdd22-c23f-4c09-b34b-a81dcdf4edc6" xlink:to="loc_us-gaap_IncreaseDecreaseInRestructuringReserve_5df91a6a-8ced-43f2-a45a-71582fa7d15e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_f20cb76a-5272-4d9d-9081-fdfb2161fec7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_29daf3ae-ecd7-4d04-ab77-cb549ac066f4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6f5c74cd-5df8-423b-8c5e-7b1c3485d753" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_29daf3ae-ecd7-4d04-ab77-cb549ac066f4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_6d83633c-34f6-49de-93a2-419aa7f58a24" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_29daf3ae-ecd7-4d04-ab77-cb549ac066f4" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_6d83633c-34f6-49de-93a2-419aa7f58a24" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_fc8c7532-1099-481c-9bb1-2b1afed09532" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_29daf3ae-ecd7-4d04-ab77-cb549ac066f4" xlink:to="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_fc8c7532-1099-481c-9bb1-2b1afed09532" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_a2095d8a-8dc8-46f2-9c2c-e8707dd074e5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_29daf3ae-ecd7-4d04-ab77-cb549ac066f4" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_a2095d8a-8dc8-46f2-9c2c-e8707dd074e5" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_74edff66-24b9-4fa0-8270-ffb9622efc54" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6f5c74cd-5df8-423b-8c5e-7b1c3485d753" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_74edff66-24b9-4fa0-8270-ffb9622efc54" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_d23840fd-0970-40e1-b6bc-9bd7d4d499e1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6f5c74cd-5df8-423b-8c5e-7b1c3485d753" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_d23840fd-0970-40e1-b6bc-9bd7d4d499e1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_d23840fd-0970-40e1-b6bc-9bd7d4d499e1" xlink:to="loc_us-gaap_RestructuringPlanAxis_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55" xlink:to="loc_us-gaap_RestructuringPlanDomain_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_d5a1e654-2a13-4ae3-86f2-1dedeb8d8e6b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_f3a12cd0-9fe3-4350-8447-1e6dc71a9b55" xlink:to="loc_us-gaap_RestructuringPlanDomain_d5a1e654-2a13-4ae3-86f2-1dedeb8d8e6b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OperationalEfficienciesProgramMember_bf99ed85-3867-4836-8aec-82ff8b55e21a" xlink:href="rlgy-20190930.xsd#rlgy_OperationalEfficienciesProgramMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_d5a1e654-2a13-4ae3-86f2-1dedeb8d8e6b" xlink:to="loc_rlgy_OperationalEfficienciesProgramMember_bf99ed85-3867-4836-8aec-82ff8b55e21a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_d389c423-574e-4f7b-98f9-f7624d7132be" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_d23840fd-0970-40e1-b6bc-9bd7d4d499e1" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_d389c423-574e-4f7b-98f9-f7624d7132be" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_d389c423-574e-4f7b-98f9-f7624d7132be_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_d389c423-574e-4f7b-98f9-f7624d7132be" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_d389c423-574e-4f7b-98f9-f7624d7132be_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_0696f947-29a6-4216-9742-9544013aa7d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_d389c423-574e-4f7b-98f9-f7624d7132be" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_0696f947-29a6-4216-9742-9544013aa7d4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_PersonnelRelatedMember_badbdf90-9cac-4e5d-b11d-afaf7c9fea57" xlink:href="rlgy-20190930.xsd#rlgy_PersonnelRelatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0696f947-29a6-4216-9742-9544013aa7d4" xlink:to="loc_rlgy_PersonnelRelatedMember_badbdf90-9cac-4e5d-b11d-afaf7c9fea57" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FacilityRelatedMember_0bc922fc-8f59-4cb3-93b2-4c4a364d201f" xlink:href="rlgy-20190930.xsd#rlgy_FacilityRelatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0696f947-29a6-4216-9742-9544013aa7d4" xlink:to="loc_rlgy_FacilityRelatedMember_0bc922fc-8f59-4cb3-93b2-4c4a364d201f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_21e6eccd-81c9-4b96-8dab-e52df03a964a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_d23840fd-0970-40e1-b6bc-9bd7d4d499e1" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_21e6eccd-81c9-4b96-8dab-e52df03a964a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_21e6eccd-81c9-4b96-8dab-e52df03a964a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_21e6eccd-81c9-4b96-8dab-e52df03a964a" xlink:to="loc_us-gaap_SegmentDomain_21e6eccd-81c9-4b96-8dab-e52df03a964a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_21e6eccd-81c9-4b96-8dab-e52df03a964a" xlink:to="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_618ffccc-5781-4fc7-a9ca-431fb05def15" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_618ffccc-5781-4fc7-a9ca-431fb05def15" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_8907ffa1-8fad-4997-9eba-89ffc1ef3043" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_8907ffa1-8fad-4997-9eba-89ffc1ef3043" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_dab420e3-0e52-409e-8b51-debf383ccb96" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:to="loc_rlgy_RelocationServicesMember_dab420e3-0e52-409e-8b51-debf383ccb96" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_9d4d306c-f44a-4580-ab6a-96fc9b3a0039" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_9d4d306c-f44a-4580-ab6a-96fc9b3a0039" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember_ac4f10c9-6f96-4cb6-b86c-de7cd8a57bbb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateAndOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0ad8fbde-f619-4ad8-8fff-2e03a45eaafa" xlink:to="loc_us-gaap_CorporateAndOtherMember_ac4f10c9-6f96-4cb6-b86c-de7cd8a57bbb" xlink:type="arc" order="4"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/RestructuringCostsLeadershipRealignmentDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#RestructuringCostsLeadershipRealignmentDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/RestructuringCostsLeadershipRealignmentDetails" xlink:type="extended" id="i953f8e72a94e41408d54d8b90a7d3391_44c22880-5f35-4c76-b2fd-ead7783c6d65">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_9dc8318d-aa09-4514-bedb-3097c0278560" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_us-gaap_RestructuringReserve_9dc8318d-aa09-4514-bedb-3097c0278560" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_07b46eb3-78bb-45ae-804a-25f459b68e0c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_us-gaap_RestructuringCharges_07b46eb3-78bb-45ae-804a-25f459b68e0c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInRestructuringReserve_55676911-7de5-44cd-9699-2d26a254734c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInRestructuringReserve"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_us-gaap_IncreaseDecreaseInRestructuringReserve_55676911-7de5-44cd-9699-2d26a254734c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AmountreclassifiedfromRestructureagainsttheLeaseAssetuponAdoptionofASC842_fa8ca693-8257-472c-9467-2376a87770b8" xlink:href="rlgy-20190930.xsd#rlgy_AmountreclassifiedfromRestructureagainsttheLeaseAssetuponAdoptionofASC842"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_rlgy_AmountreclassifiedfromRestructureagainsttheLeaseAssetuponAdoptionofASC842_fa8ca693-8257-472c-9467-2376a87770b8" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_3b4e3a30-5dff-4fd3-8802-d49bd04aa718" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_3b4e3a30-5dff-4fd3-8802-d49bd04aa718" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_4b70342d-6087-4deb-8761-82f78b5f3a90" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_766c2abf-b7ea-4757-ac06-e2a805398ec4" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_4b70342d-6087-4deb-8761-82f78b5f3a90" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_22240e4f-8f90-4bdf-a9cd-359d2c26eff6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_4b70342d-6087-4deb-8761-82f78b5f3a90" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_22240e4f-8f90-4bdf-a9cd-359d2c26eff6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_22240e4f-8f90-4bdf-a9cd-359d2c26eff6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_22240e4f-8f90-4bdf-a9cd-359d2c26eff6" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_22240e4f-8f90-4bdf-a9cd-359d2c26eff6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_6536cab6-b963-4453-b220-4af441caa4f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_22240e4f-8f90-4bdf-a9cd-359d2c26eff6" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_6536cab6-b963-4453-b220-4af441caa4f8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_PersonnelRelatedMember_da9a435d-8ed7-4cea-b2b2-08be31cc95e4" xlink:href="rlgy-20190930.xsd#rlgy_PersonnelRelatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_6536cab6-b963-4453-b220-4af441caa4f8" xlink:to="loc_rlgy_PersonnelRelatedMember_da9a435d-8ed7-4cea-b2b2-08be31cc95e4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_07236e52-6f13-42b3-b23e-bb7eead71778" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_4b70342d-6087-4deb-8761-82f78b5f3a90" xlink:to="loc_us-gaap_RestructuringPlanAxis_07236e52-6f13-42b3-b23e-bb7eead71778" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_07236e52-6f13-42b3-b23e-bb7eead71778_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_07236e52-6f13-42b3-b23e-bb7eead71778" xlink:to="loc_us-gaap_RestructuringPlanDomain_07236e52-6f13-42b3-b23e-bb7eead71778_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_b7497551-7b7a-4eea-a343-0db0eb84bb60" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_07236e52-6f13-42b3-b23e-bb7eead71778" xlink:to="loc_us-gaap_RestructuringPlanDomain_b7497551-7b7a-4eea-a343-0db0eb84bb60" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_LeadershipRealignmentMember_b4821de5-4845-454b-8d07-57557202a581" xlink:href="rlgy-20190930.xsd#rlgy_LeadershipRealignmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_b7497551-7b7a-4eea-a343-0db0eb84bb60" xlink:to="loc_rlgy_LeadershipRealignmentMember_b4821de5-4845-454b-8d07-57557202a581" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/EquityEquity" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityEquity"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityEquity" xlink:type="extended" id="i49e44c870ab648a883150ebe4bf3fa77_a3eb638f-50a7-4fd8-bf5e-71f888f0c26b"/>
<link:roleRef roleURI="http://www.realogy.com/role/EquityEquityPolicies" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityEquityPolicies"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityEquityPolicies" xlink:type="extended" id="i4704924485c5499a8cfa781b50857f2d_65fed3ab-90b8-46ea-8a25-29f3cb109dde"/>
<link:roleRef roleURI="http://www.realogy.com/role/EquityEquityTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityEquityTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityEquityTables" xlink:type="extended" id="iad6f17bb080140198dead31003a48e05_deb2705f-6367-43c1-8a3e-32c5e0e79c0d"/>
<link:roleRef roleURI="http://www.realogy.com/role/EquityEquityDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityEquityDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityEquityDetails" xlink:type="extended" id="i0441f5dec39c49b48844ee4f1d0d67ea_9c87e4f4-723c-41cd-bb6b-cdd0e5ae3d37">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:href="rlgy-20190930.xsd#rlgy_StatementOfEquityTableLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_ea3b5697-1a86-4139-8e58-de25a8121733" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_ea3b5697-1a86-4139-8e58-de25a8121733" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_05f8cc68-5ffb-4dc4-bad0-21c8e5999d2c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_05f8cc68-5ffb-4dc4-bad0-21c8e5999d2c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_8abae708-51a5-4943-88ac-87ab8d38f06f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_8abae708-51a5-4943-88ac-87ab8d38f06f" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_bd1c2a16-bd12-44f8-9aca-396e741c029e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_bd1c2a16-bd12-44f8-9aca-396e741c029e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_4029fa01-7fa6-4163-afee-d3cb93cc76b4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_43f1ffc6-6961-4981-bade-dbd48f8937a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_43f1ffc6-6961-4981-bade-dbd48f8937a2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_564a41f5-8cb6-4cae-a767-f36b1ee354b3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_564a41f5-8cb6-4cae-a767-f36b1ee354b3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_49a5114b-bfa0-4f12-ba07-b5dcc7aac571" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_ProfitLoss_49a5114b-bfa0-4f12-ba07-b5dcc7aac571" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_544c12e3-6b77-4759-be7c-f181299f61fd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_544c12e3-6b77-4759-be7c-f181299f61fd" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_2d2281d6-3e4f-4202-9a80-818c9ca7ae30" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_2d2281d6-3e4f-4202-9a80-818c9ca7ae30" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_74b34f64-ba1e-4dd9-8ad1-2072e838fd07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_74b34f64-ba1e-4dd9-8ad1-2072e838fd07" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_553b3a3e-bff9-4683-8d02-f5fc09a67681" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_553b3a3e-bff9-4683-8d02-f5fc09a67681" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_2964be91-5ab0-4d8b-ab5b-0fc1786e0bba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_2964be91-5ab0-4d8b-ab5b-0fc1786e0bba" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_1890143f-bfa5-4bb2-af89-79002f13b3c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DividendsCommonStockCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_DividendsCommonStockCash_1890143f-bfa5-4bb2-af89-79002f13b3c2" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_246336fa-100a-410c-9b21-eea908aaec92" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_246336fa-100a-410c-9b21-eea908aaec92" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_473eb1b6-885c-4e5a-a700-4bc00c063191" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Dividends"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e0241803-e8c1-4792-ae3c-867a77bb5caf" xlink:to="loc_us-gaap_Dividends_473eb1b6-885c-4e5a-a700-4bc00c063191" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7fed3547-bf76-4abc-823a-c4e8ed92121d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_EquityDeficitTableTable_ec6d3f01-d493-4c50-a89d-87dd9ae7fa39" xlink:href="rlgy-20190930.xsd#rlgy_EquityDeficitTableTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_StatementOfEquityTableLineItems_9cabc5b8-966d-4bb4-a130-24040ce330df" xlink:to="loc_rlgy_EquityDeficitTableTable_ec6d3f01-d493-4c50-a89d-87dd9ae7fa39" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_078343fa-ad56-4fa7-a860-425a8dad8b4d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_EquityDeficitTableTable_ec6d3f01-d493-4c50-a89d-87dd9ae7fa39" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_078343fa-ad56-4fa7-a860-425a8dad8b4d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_078343fa-ad56-4fa7-a860-425a8dad8b4d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_078343fa-ad56-4fa7-a860-425a8dad8b4d" xlink:to="loc_us-gaap_EquityComponentDomain_078343fa-ad56-4fa7-a860-425a8dad8b4d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_078343fa-ad56-4fa7-a860-425a8dad8b4d" xlink:to="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_e503d709-344d-471b-9006-054130aa06a3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:to="loc_us-gaap_CommonStockMember_e503d709-344d-471b-9006-054130aa06a3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_4dd18bb9-98d3-4c32-b2c3-b125e9078e6c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_4dd18bb9-98d3-4c32-b2c3-b125e9078e6c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_0ceb3cd9-f066-480f-8786-fd69b2f553a0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:to="loc_us-gaap_RetainedEarningsMember_0ceb3cd9-f066-480f-8786-fd69b2f553a0" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cff0e72e-b87b-46c0-ba92-e37aac503d0b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cff0e72e-b87b-46c0-ba92-e37aac503d0b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_6b8c6d76-ef6d-4847-af87-00aa194c1ff0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoncontrollingInterestMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9040aed-406d-4e79-b259-a77cb6296e7e" xlink:to="loc_us-gaap_NoncontrollingInterestMember_6b8c6d76-ef6d-4847-af87-00aa194c1ff0" xlink:type="arc" order="4"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/EquityStockRepurchases" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityStockRepurchases"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityStockRepurchases" xlink:type="extended" id="i6884c83a09c54571940e450783657140_e8436f6b-7620-4cb0-b8f8-91ac92c42b8f">
<link:loc xlink:type="locator" xlink:label="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:href="rlgy-20190930.xsd#rlgy_StockRepurchasesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_711f7c54-fb7a-426d-bce8-c7e86c8ec17f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_711f7c54-fb7a-426d-bce8-c7e86c8ec17f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_b9f92297-d523-4064-8b97-9a0aafab0619" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_b9f92297-d523-4064-8b97-9a0aafab0619" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_325a4a27-7a47-47dc-8720-e33c5f40f0b7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_325a4a27-7a47-47dc-8720-e33c5f40f0b7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_StockRepurchasedandRetiredDuringPeriodWeightedAverageMarketPrice_b7a6313a-a505-45a5-9ed8-669541fe6254" xlink:href="rlgy-20190930.xsd#rlgy_StockRepurchasedandRetiredDuringPeriodWeightedAverageMarketPrice"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_rlgy_StockRepurchasedandRetiredDuringPeriodWeightedAverageMarketPrice_b7a6313a-a505-45a5-9ed8-669541fe6254" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_9965c846-eac1-4587-9b74-98ac636f548e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_9965c846-eac1-4587-9b74-98ac636f548e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_bd6ec976-cb50-43dc-9567-6a818098662f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_bd6ec976-cb50-43dc-9567-6a818098662f" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:href="rlgy-20190930.xsd#rlgy_StockRepurchasesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_rlgy_StockRepurchasesLineItems_a3bb5df3-ce31-4633-aeaa-ad23c908030f" xlink:to="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_1b1ae547-c6e9-438c-b7b2-dec796d39137" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:to="loc_srt_RangeAxis_1b1ae547-c6e9-438c-b7b2-dec796d39137" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_1b1ae547-c6e9-438c-b7b2-dec796d39137_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_1b1ae547-c6e9-438c-b7b2-dec796d39137" xlink:to="loc_srt_RangeMember_1b1ae547-c6e9-438c-b7b2-dec796d39137_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_9c1b0448-76da-455b-b5e6-c9961069ffee" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_1b1ae547-c6e9-438c-b7b2-dec796d39137" xlink:to="loc_srt_RangeMember_9c1b0448-76da-455b-b5e6-c9961069ffee" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_cfddb70f-1a7a-4fee-8cb3-1ee2bb09b8c0" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_9c1b0448-76da-455b-b5e6-c9961069ffee" xlink:to="loc_srt_MaximumMember_cfddb70f-1a7a-4fee-8cb3-1ee2bb09b8c0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_8e11b4af-a782-4e13-a08f-053aba9d94b6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_8e11b4af-a782-4e13-a08f-053aba9d94b6" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_8e11b4af-a782-4e13-a08f-053aba9d94b6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_8e11b4af-a782-4e13-a08f-053aba9d94b6" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_8e11b4af-a782-4e13-a08f-053aba9d94b6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_8e11b4af-a782-4e13-a08f-053aba9d94b6" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2016StockRepurchasePlanMember_36b05f61-c20e-4d0e-b0a8-767d3dcbb338" xlink:href="rlgy-20190930.xsd#rlgy_A2016StockRepurchasePlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:to="loc_rlgy_A2016StockRepurchasePlanMember_36b05f61-c20e-4d0e-b0a8-767d3dcbb338" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2017StockRepurchasePlanMember_3fa8621d-84f9-4fa7-8f4b-d9cef80d2461" xlink:href="rlgy-20190930.xsd#rlgy_A2017StockRepurchasePlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:to="loc_rlgy_A2017StockRepurchasePlanMember_3fa8621d-84f9-4fa7-8f4b-d9cef80d2461" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2018StockRepurchasePlanMember_e3f57684-dd32-491e-9160-79e4a4443dee" xlink:href="rlgy-20190930.xsd#rlgy_A2018StockRepurchasePlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:to="loc_rlgy_A2018StockRepurchasePlanMember_e3f57684-dd32-491e-9160-79e4a4443dee" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A2019StockRepurchasePlanMember_7a6b31e5-6043-4946-88ef-268b4c494897" xlink:href="rlgy-20190930.xsd#rlgy_A2019StockRepurchasePlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_2926b41a-d0bf-40c2-a7d8-8dcff0b7b57c" xlink:to="loc_rlgy_A2019StockRepurchasePlanMember_7a6b31e5-6043-4946-88ef-268b4c494897" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_5be468ae-745c-4b1f-8571-966c788b082b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_5be468ae-745c-4b1f-8571-966c788b082b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_5be468ae-745c-4b1f-8571-966c788b082b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5be468ae-745c-4b1f-8571-966c788b082b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_5be468ae-745c-4b1f-8571-966c788b082b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_17b51b78-1e2c-407e-a71d-5cd36d611004" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5be468ae-745c-4b1f-8571-966c788b082b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_17b51b78-1e2c-407e-a71d-5cd36d611004" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_ac763f11-165b-4ad1-9d3c-672487fcb5ac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_17b51b78-1e2c-407e-a71d-5cd36d611004" xlink:to="loc_us-gaap_SeniorNotesMember_ac763f11-165b-4ad1-9d3c-672487fcb5ac" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_dd51c1c2-8479-4eb5-a8ce-17df5b362de4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_rlgy_StockRepurchasesTable_ad91670d-fa55-493f-8323-ba1272bb8c15" xlink:to="loc_us-gaap_DebtInstrumentAxis_dd51c1c2-8479-4eb5-a8ce-17df5b362de4" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_dd51c1c2-8479-4eb5-a8ce-17df5b362de4_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_dd51c1c2-8479-4eb5-a8ce-17df5b362de4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_dd51c1c2-8479-4eb5-a8ce-17df5b362de4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_4d7969f5-251d-4f80-9e09-5cb45bea15cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_dd51c1c2-8479-4eb5-a8ce-17df5b362de4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_4d7969f5-251d-4f80-9e09-5cb45bea15cb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_A9.375SeniorNotesMember_b9d6dd26-07f3-4df7-b5b8-9526632b3bb3" xlink:href="rlgy-20190930.xsd#rlgy_A9.375SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_4d7969f5-251d-4f80-9e09-5cb45bea15cb" xlink:to="loc_rlgy_A9.375SeniorNotesMember_b9d6dd26-07f3-4df7-b5b8-9526632b3bb3" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/EquityStockBasedCompensationDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EquityStockBasedCompensationDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EquityStockBasedCompensationDetails" xlink:type="extended" id="i2d213b791fc04ac283f8396325f89e3e_81f1a571-0ebf-4cfa-bdbb-cea6d2f317a0">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_36e98f0c-cd4f-4ad8-9b6a-ab240da81756" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_36e98f0c-cd4f-4ad8-9b6a-ab240da81756" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_15204047-0fba-46fa-8284-4fced49b04db" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_15204047-0fba-46fa-8284-4fced49b04db" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_dd3045ea-0e25-4ba4-b94d-9cda41b2bdfa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_dd3045ea-0e25-4ba4-b94d-9cda41b2bdfa" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantedWeightedAverageGrantDateFairValue_168ceeb7-3fb7-4886-814e-286999a813bf" xlink:href="rlgy-20190930.xsd#rlgy_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantedWeightedAverageGrantDateFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:to="loc_rlgy_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantedWeightedAverageGrantDateFairValue_168ceeb7-3fb7-4886-814e-286999a813bf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_e7573cfb-44ca-4d11-bc3c-320760163c04" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_e894ac0e-3812-473a-918b-f2dd73122401" xlink:to="loc_us-gaap_StatementTable_e7573cfb-44ca-4d11-bc3c-320760163c04" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_aba06d82-17d6-470f-b008-c076751aa649" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_e7573cfb-44ca-4d11-bc3c-320760163c04" xlink:to="loc_us-gaap_AwardTypeAxis_aba06d82-17d6-470f-b008-c076751aa649" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aba06d82-17d6-470f-b008-c076751aa649_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_aba06d82-17d6-470f-b008-c076751aa649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aba06d82-17d6-470f-b008-c076751aa649_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b7fbe3d0-bf92-4fe4-8d26-5d634a18814e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_aba06d82-17d6-470f-b008-c076751aa649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b7fbe3d0-bf92-4fe4-8d26-5d634a18814e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_e613d63f-ac1e-4d12-aefa-88828dad5721" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b7fbe3d0-bf92-4fe4-8d26-5d634a18814e" xlink:to="loc_us-gaap_EmployeeStockOptionMember_e613d63f-ac1e-4d12-aefa-88828dad5721" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_41eee97f-9de0-4217-be5e-cc6e276c8c72" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b7fbe3d0-bf92-4fe4-8d26-5d634a18814e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_41eee97f-9de0-4217-be5e-cc6e276c8c72" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_9ee54110-330e-4191-95ab-8de7a76eb7be" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PerformanceSharesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b7fbe3d0-bf92-4fe4-8d26-5d634a18814e" xlink:to="loc_us-gaap_PerformanceSharesMember_9ee54110-330e-4191-95ab-8de7a76eb7be" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/Dividends" xlink:type="simple" xlink:href="rlgy-20190930.xsd#Dividends"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/Dividends" xlink:type="extended" id="i55785e32715d496998220434c43a10c2_f256be4c-b363-4466-8766-7880cf84f215"/>
<link:roleRef roleURI="http://www.realogy.com/role/EarningsPerShareEarningsPerShare" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EarningsPerShareEarningsPerShare"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EarningsPerShareEarningsPerShare" xlink:type="extended" id="ib3cc08f9335a4dcfa8d502eb41d78326_46ccffe1-9b2c-4ece-9bc5-43bdb679a574"/>
<link:roleRef roleURI="http://www.realogy.com/role/EarningsPerShareScheduleofEarningsPerShareBasicandDilutedTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EarningsPerShareScheduleofEarningsPerShareBasicandDilutedTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EarningsPerShareScheduleofEarningsPerShareBasicandDilutedTables" xlink:type="extended" id="i656ac7cb22954698a4bd7fcc65e24909_07ddd022-ff9a-48e5-8335-d73d2f863683"/>
<link:roleRef roleURI="http://www.realogy.com/role/EarningsPerShareEarningPerShareDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#EarningsPerShareEarningPerShareDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/EarningsPerShareEarningPerShareDetails" xlink:type="extended" id="i3808d73ab6b349d3a587f7b3f7083b39_aab29689-9a49-45fe-a4e3-3c78cf0a2ceb"/>
<link:roleRef roleURI="http://www.realogy.com/role/CommitmentsAndContingenciesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#CommitmentsAndContingenciesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended" id="ib6462d6c354e4f75a6619cf788a61a78_4d78f010-f1f5-4975-8c51-48628f0b4587">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingenciesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CendantSpinOffNumberOfNewIndependentCompanies_206e3fe4-4fb9-4373-95b6-5d2384d94d5f" xlink:href="rlgy-20190930.xsd#rlgy_CendantSpinOffNumberOfNewIndependentCompanies"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_rlgy_CendantSpinOffNumberOfNewIndependentCompanies_206e3fe4-4fb9-4373-95b6-5d2384d94d5f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_NumberOfNewIndependentCompaniesPerCendantBusinessUnit_4063631c-26b1-4373-a19d-ea4d96f69d03" xlink:href="rlgy-20190930.xsd#rlgy_NumberOfNewIndependentCompaniesPerCendantBusinessUnit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_rlgy_NumberOfNewIndependentCompaniesPerCendantBusinessUnit_4063631c-26b1-4373-a19d-ea4d96f69d03" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_GuarantyArrangementPercentageofObligationsAssumedbyRealogy_be4e8c0e-18d8-4089-bd7c-212c7b767dbe" xlink:href="rlgy-20190930.xsd#rlgy_GuarantyArrangementPercentageofObligationsAssumedbyRealogy"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_rlgy_GuarantyArrangementPercentageofObligationsAssumedbyRealogy_be4e8c0e-18d8-4089-bd7c-212c7b767dbe" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_GuarantyArrangementPercentageOfObligationsAssumedByWyndham_2e6fe194-0d6a-4992-9ed2-70d1865d1daa" xlink:href="rlgy-20190930.xsd#rlgy_GuarantyArrangementPercentageOfObligationsAssumedByWyndham"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_rlgy_GuarantyArrangementPercentageOfObligationsAssumedByWyndham_2e6fe194-0d6a-4992-9ed2-70d1865d1daa" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrent_3cc552ee-9d43-47ed-9aec-7310064c837c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_us-gaap_DueToRelatedPartiesCurrent_3cc552ee-9d43-47ed-9aec-7310064c837c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFDICInsuredAmount_057bbcba-4f3a-4694-8170-237b243cb8ea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFDICInsuredAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_us-gaap_CashFDICInsuredAmount_057bbcba-4f3a-4694-8170-237b243cb8ea" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestBearingDepositLiabilities_a175b5d7-4cbd-4d08-bd52-60459951ad1b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoninterestBearingDepositLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_us-gaap_NoninterestBearingDepositLiabilities_a175b5d7-4cbd-4d08-bd52-60459951ad1b" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_e2eaa4f7-c56a-4d81-8edd-d2b9d04a851a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingenciesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_65fc195f-09ec-4b8f-a7b4-619dd29cc68a" xlink:to="loc_us-gaap_LossContingenciesTable_e2eaa4f7-c56a-4d81-8edd-d2b9d04a851a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_686aadcd-9f86-492d-a10d-86e7b262d709" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_e2eaa4f7-c56a-4d81-8edd-d2b9d04a851a" xlink:to="loc_srt_RangeAxis_686aadcd-9f86-492d-a10d-86e7b262d709" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_686aadcd-9f86-492d-a10d-86e7b262d709_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_686aadcd-9f86-492d-a10d-86e7b262d709" xlink:to="loc_srt_RangeMember_686aadcd-9f86-492d-a10d-86e7b262d709_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d727359c-bdf4-4091-abd5-ad00c82b3c84" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_686aadcd-9f86-492d-a10d-86e7b262d709" xlink:to="loc_srt_RangeMember_d727359c-bdf4-4091-abd5-ad00c82b3c84" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_ab41826f-892c-4e26-97cf-1eda16a7cd23" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_d727359c-bdf4-4091-abd5-ad00c82b3c84" xlink:to="loc_srt_MaximumMember_ab41826f-892c-4e26-97cf-1eda16a7cd23" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/SegmentInformation" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SegmentInformation"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SegmentInformation" xlink:type="extended" id="ib2c036c9150b4b8a9e99a7dfbef1b67b_0149a29f-0d09-46c2-9778-3b6c5f457aa2"/>
<link:roleRef roleURI="http://www.realogy.com/role/SegmentInformationTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SegmentInformationTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SegmentInformationTables" xlink:type="extended" id="i2ce1aa97d14b42e4b6390d5e16162569_99e43606-8509-4aac-874c-577549d00aa5"/>
<link:roleRef roleURI="http://www.realogy.com/role/SegmentInformationRevenuesDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SegmentInformationRevenuesDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SegmentInformationRevenuesDetails" xlink:type="extended" id="i6dfcb499c6df46f5a33d5679a3b1277d_aea893c3-3db3-4cb0-8343-9a2f027352ec">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_09be71cb-29ef-4fe2-b80a-c5c2a71df2ca" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingRevenueReconcilingItemLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_e4b5a4fb-623e-4858-ba2e-e61be0c37003" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_09be71cb-29ef-4fe2-b80a-c5c2a71df2ca" xlink:to="loc_us-gaap_Revenues_e4b5a4fb-623e-4858-ba2e-e61be0c37003" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable_834bca3b-53ed-4c30-9ebe-51dcac10f92b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_09be71cb-29ef-4fe2-b80a-c5c2a71df2ca" xlink:to="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable_834bca3b-53ed-4c30-9ebe-51dcac10f92b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable_834bca3b-53ed-4c30-9ebe-51dcac10f92b" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b" xlink:to="loc_us-gaap_SegmentDomain_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_36467c5a-3f3d-41f7-83b0-7fcd31c46d3b" xlink:to="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_abd5b130-9c2a-4f34-98b6-d1ecc0da0ce5" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_abd5b130-9c2a-4f34-98b6-d1ecc0da0ce5" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_79c057f8-9e5a-458a-8371-20bca9f37a03" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_79c057f8-9e5a-458a-8371-20bca9f37a03" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_057ee952-b29c-40e2-8c52-9d58f5333e0d" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:to="loc_rlgy_RelocationServicesMember_057ee952-b29c-40e2-8c52-9d58f5333e0d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_08c19da3-bc43-4d32-9bdd-3fcd6a06b631" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_08c19da3-bc43-4d32-9bdd-3fcd6a06b631" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember_b32877d0-2083-4643-b22c-ee264e5f42dd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateAndOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_438af1ed-d839-4a0a-87ce-10a4ac3baf81" xlink:to="loc_us-gaap_CorporateAndOtherMember_b32877d0-2083-4643-b22c-ee264e5f42dd" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_e3e8ad40-4079-4498-9117-a30b98d505ec" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable_834bca3b-53ed-4c30-9ebe-51dcac10f92b" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_e3e8ad40-4079-4498-9117-a30b98d505ec" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_e3e8ad40-4079-4498-9117-a30b98d505ec_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_e3e8ad40-4079-4498-9117-a30b98d505ec" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_e3e8ad40-4079-4498-9117-a30b98d505ec_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_c22fc3b6-d9ee-4b6d-b27b-f9fdba16e803" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_e3e8ad40-4079-4498-9117-a30b98d505ec" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_c22fc3b6-d9ee-4b6d-b27b-f9fdba16e803" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RoyaltiesAndMarketingFeesMember_a29f27f7-98cc-459d-a2cf-5021e5385dea" xlink:href="rlgy-20190930.xsd#rlgy_RoyaltiesAndMarketingFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c22fc3b6-d9ee-4b6d-b27b-f9fdba16e803" xlink:to="loc_rlgy_RoyaltiesAndMarketingFeesMember_a29f27f7-98cc-459d-a2cf-5021e5385dea" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ReferralAndRelocationFeesMember_ac0e0adf-108e-4c51-840a-06bb487e6fbb" xlink:href="rlgy-20190930.xsd#rlgy_ReferralAndRelocationFeesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c22fc3b6-d9ee-4b6d-b27b-f9fdba16e803" xlink:to="loc_rlgy_ReferralAndRelocationFeesMember_ac0e0adf-108e-4c51-840a-06bb487e6fbb" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/SegmentInformationOperatingEBITDADetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SegmentInformationOperatingEBITDADetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SegmentInformationOperatingEBITDADetails" xlink:type="extended" id="icde6786728704a9cae4e1c4080046c63_c53962b6-6506-492a-9457-0f410704240e">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_OperatingEBITDA_c989b12d-1eac-472d-bcbf-309eca159746" xlink:href="rlgy-20190930.xsd#rlgy_OperatingEBITDA"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_rlgy_OperatingEBITDA_c989b12d-1eac-472d-bcbf-309eca159746" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_ba2e926b-5190-407e-8cc4-0a7e0c8e6306" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_DepreciationAndAmortization_ba2e926b-5190-407e-8cc4-0a7e0c8e6306" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_DepreciationandamortizationadjustedforAmortizationofIntangibleAssetsrelatedtoGRAAcquisition_25914e72-f4ca-4d08-be7d-f5697c9bcd93" xlink:href="rlgy-20190930.xsd#rlgy_DepreciationandamortizationadjustedforAmortizationofIntangibleAssetsrelatedtoGRAAcquisition"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_rlgy_DepreciationandamortizationadjustedforAmortizationofIntangibleAssetsrelatedtoGRAAcquisition_25914e72-f4ca-4d08-be7d-f5697c9bcd93" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_872c1fce-ae08-40f1-a36b-b7d39da40511" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_InterestExpense_872c1fce-ae08-40f1-a36b-b7d39da40511" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_58b23330-a077-433b-b4c9-03050b95533b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_58b23330-a077-433b-b4c9-03050b95533b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_4b428d47-d2ce-4e2a-b4e3-2224a7490846" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_RestructuringCharges_4b428d47-d2ce-4e2a-b4e3-2224a7490846" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_635872fd-f7be-4e84-84f1-36591f59c9a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_AssetImpairmentCharges_635872fd-f7be-4e84-84f1-36591f59c9a2" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_FormerParentLegacyCostsBenefitsNet_44d3d99b-cef3-46c9-b806-a7fd272e8f17" xlink:href="rlgy-20190930.xsd#rlgy_FormerParentLegacyCostsBenefitsNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_rlgy_FormerParentLegacyCostsBenefitsNet_44d3d99b-cef3-46c9-b806-a7fd272e8f17" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_91062362-1a1f-4ab0-9a91-3f146b9394ad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_91062362-1a1f-4ab0-9a91-3f146b9394ad" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_aafbcb9a-c1f1-442f-b6be-4fd6b912a2a0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_NetIncomeLoss_aafbcb9a-c1f1-442f-b6be-4fd6b912a2a0" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2bfd9674-216f-41ea-b867-8687a309222a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2bfd9674-216f-41ea-b867-8687a309222a" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_15d67d3f-badf-48e3-95ce-1cc2413581b0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_15d67d3f-badf-48e3-95ce-1cc2413581b0" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetImpairmentCharges_675c3167-cb50-4efc-bb1a-ea0eee2aaad2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetImpairmentCharges"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_OtherAssetImpairmentCharges_675c3167-cb50-4efc-bb1a-ea0eee2aaad2" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_f355c7d7-ff51-4ee3-b10a-ab22626f13c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_66bcabb2-bd45-453c-ba2f-c75ce6684902" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_f355c7d7-ff51-4ee3-b10a-ab22626f13c4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_EquityEarningsLossesComponentsAxis_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8" xlink:href="rlgy-20190930.xsd#rlgy_EquityEarningsLossesComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_f355c7d7-ff51-4ee3-b10a-ab22626f13c4" xlink:to="loc_rlgy_EquityEarningsLossesComponentsAxis_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_EquityEarningsLossesComponentsDomain_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8_default" xlink:href="rlgy-20190930.xsd#rlgy_EquityEarningsLossesComponentsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_rlgy_EquityEarningsLossesComponentsAxis_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8" xlink:to="loc_rlgy_EquityEarningsLossesComponentsDomain_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_EquityEarningsLossesComponentsDomain_d8088221-5f0b-43dc-82ab-4daf444c887f" xlink:href="rlgy-20190930.xsd#rlgy_EquityEarningsLossesComponentsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_rlgy_EquityEarningsLossesComponentsAxis_7c3d7d77-39e9-49bc-b52c-c1f707f6e5d8" xlink:to="loc_rlgy_EquityEarningsLossesComponentsDomain_d8088221-5f0b-43dc-82ab-4daf444c887f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_AmortizationofIntangibleAssetsrelatedtoGRAAcquisitionMember_239c9473-9fe6-400a-b7c6-782edccf9bd1" xlink:href="rlgy-20190930.xsd#rlgy_AmortizationofIntangibleAssetsrelatedtoGRAAcquisitionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_rlgy_EquityEarningsLossesComponentsDomain_d8088221-5f0b-43dc-82ab-4daf444c887f" xlink:to="loc_rlgy_AmortizationofIntangibleAssetsrelatedtoGRAAcquisitionMember_239c9473-9fe6-400a-b7c6-782edccf9bd1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_90647ef1-bf40-415c-9dd0-e89c5c40d350" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_f355c7d7-ff51-4ee3-b10a-ab22626f13c4" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_90647ef1-bf40-415c-9dd0-e89c5c40d350" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_90647ef1-bf40-415c-9dd0-e89c5c40d350_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_90647ef1-bf40-415c-9dd0-e89c5c40d350" xlink:to="loc_us-gaap_SegmentDomain_90647ef1-bf40-415c-9dd0-e89c5c40d350_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_90647ef1-bf40-415c-9dd0-e89c5c40d350" xlink:to="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RealEstateFranchiseServicesMember_5716ef21-2681-48b6-9514-8eb85fd0366b" xlink:href="rlgy-20190930.xsd#rlgy_RealEstateFranchiseServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:to="loc_rlgy_RealEstateFranchiseServicesMember_5716ef21-2681-48b6-9514-8eb85fd0366b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_a4cd1e0e-b629-4c4d-bffc-0dc5e3202880" xlink:href="rlgy-20190930.xsd#rlgy_CompanyOwnedRealEstateBrokerageServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:to="loc_rlgy_CompanyOwnedRealEstateBrokerageServicesMember_a4cd1e0e-b629-4c4d-bffc-0dc5e3202880" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_RelocationServicesMember_69385299-22d3-494b-993e-8416fdb7ac01" xlink:href="rlgy-20190930.xsd#rlgy_RelocationServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:to="loc_rlgy_RelocationServicesMember_69385299-22d3-494b-993e-8416fdb7ac01" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_TitleAndSettlementServicesMember_03832fb0-3680-4964-ab92-c4a04fdb80dd" xlink:href="rlgy-20190930.xsd#rlgy_TitleAndSettlementServicesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:to="loc_rlgy_TitleAndSettlementServicesMember_03832fb0-3680-4964-ab92-c4a04fdb80dd" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember_48ecb76b-d56f-4726-abe0-8138f1f0a990" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateAndOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_18468a8a-150e-4adc-b2bf-4ad5614e9c3a" xlink:to="loc_us-gaap_CorporateAndOtherMember_48ecb76b-d56f-4726-abe0-8138f1f0a990" xlink:type="arc" order="4"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.realogy.com/role/SubsequentEvents" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SubsequentEvents"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SubsequentEvents" xlink:type="extended" id="ifc0f0fc162134bef8f136e70512dae3b_d4adc09a-c325-4f14-b861-94c4c9693513"/>
<link:roleRef roleURI="http://www.realogy.com/role/SubsequentEventsTables" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SubsequentEventsTables"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SubsequentEventsTables" xlink:type="extended" id="i9b869a0f4e274d59b1ccd59be3e265cb_a32363ea-3a27-47c9-ad45-74757d55e836"/>
<link:roleRef roleURI="http://www.realogy.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="rlgy-20190930.xsd#SubsequentEventsDetails"/>
<link:definitionLink xlink:role="http://www.realogy.com/role/SubsequentEventsDetails" xlink:type="extended" id="ie9c82b166c714a7a84b0fd9358863d8b_5f5bd08c-adb6-43eb-8204-b3e7541af2e5">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_f5f7468d-eb5a-4f05-8e78-adf149744791" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ExpectedValueToBeReceivedAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_41ffb032-4999-4953-8f2d-085700a8eb43" xlink:href="rlgy-20190930.xsd#rlgy_ExpectedValueToBeReceivedAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f5f7468d-eb5a-4f05-8e78-adf149744791" xlink:to="loc_rlgy_ExpectedValueToBeReceivedAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_41ffb032-4999-4953-8f2d-085700a8eb43" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ExpectedCashProceedsAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_c83e6a52-a80f-410c-bc09-8c8c60f4682a" xlink:href="rlgy-20190930.xsd#rlgy_ExpectedCashProceedsAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f5f7468d-eb5a-4f05-8e78-adf149744791" xlink:to="loc_rlgy_ExpectedCashProceedsAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_c83e6a52-a80f-410c-bc09-8c8c60f4682a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_rlgy_ExpectedDeferredPaymentAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_c35f04fe-6271-4398-9428-d65f9a895f31" xlink:href="rlgy-20190930.xsd#rlgy_ExpectedDeferredPaymentAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f5f7468d-eb5a-4f05-8e78-adf149744791" xlink:to="loc_rlgy_ExpectedDeferredPaymentAtClosingFromThePlannedSaleOfEmployeeRelocationBusiness_c35f04fe-6271-4398-9428-d65f9a895f31" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_e028c7bd-43fd-481a-867f-06ef1aaea6f2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_f5f7468d-eb5a-4f05-8e78-adf149744791" xlink:to="loc_us-gaap_SubsequentEventTable_e028c7bd-43fd-481a-867f-06ef1aaea6f2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_e028c7bd-43fd-481a-867f-06ef1aaea6f2" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_fe3d4b19-3624-469f-b36e-1218fe4016b4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_9ad3fcd0-b63b-4568-b94b-1cb0482c4a20" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_fe3d4b19-3624-469f-b36e-1218fe4016b4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_68cba672-9e6c-4569-b5b2-aa3b451da62b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_fe3d4b19-3624-469f-b36e-1218fe4016b4" xlink:to="loc_us-gaap_SubsequentEventMember_68cba672-9e6c-4569-b5b2-aa3b451da62b" xlink:type="arc" order="0"/>
</link:definitionLink>
</link:linkbase>

↑Top
Filing Submission 0001398987-19-000252   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Mon., Apr. 29, 10:32:06.1pm ET