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| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesLoansLeasesandAllowanceforCreditLossesTroubledDebtRestructuringsDetails" xlink:type="extended"/> |
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| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesLoansLeasesandAllowanceforCreditLossesCollateralDependentLoansDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesAllowancesforCreditLossesDetailValuation" xlink:type="simple" xlink:href="wal-20210331.xsd#LoansLeasesandAllowanceforCreditLossesAllowancesforCreditLossesDetailValuation"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesAllowancesforCreditLossesDetailValuation" xlink:type="extended"/> |
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| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesLoansLeasesandAllowanceforCreditLossesLoanPurchasesandSalesDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesTables" xlink:type="simple" xlink:href="wal-20210331.xsd#LoansLeasesandAllowanceforCreditLossesTables"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/OtherBorrowings" xlink:type="simple" xlink:href="wal-20210331.xsd#OtherBorrowings"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/OtherBorrowings" xlink:type="extended"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquity" xlink:type="simple" xlink:href="wal-20210331.xsd#StockholdersEquity"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityCommonStockRepurchasePolicies" xlink:type="simple" xlink:href="wal-20210331.xsd#StockholdersEquityCommonStockRepurchasePolicies"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityCashDividendPolicies" xlink:type="simple" xlink:href="wal-20210331.xsd#StockholdersEquityCashDividendPolicies"/> |
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| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeSummaryofChangesinAccumulatedOtherComprehensiveIncomeDetail" xlink:type="extended"> |
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| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_60a4dd43-a0f4-4078-8daa-896d93398251" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeScheduleofReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#AccumulatedOtherComprehensiveIncomeScheduleofReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeScheduleofReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedging" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedging"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/DerivativesandHedging" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingTables" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedgingTables"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingFairValueofDerivativeContractsDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedgingFairValueofDerivativeContractsDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/DerivativesandHedgingFairValueofDerivativeContractsDetail" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_1d0c3aad-9d1d-4f15-a338-36b4c442afa1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeAssets"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_daad01f6-f4dc-470b-b96d-6100a644661b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingPreTaxNetGainsLossesonFairValueHedgesDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedgingPreTaxNetGainsLossesonFairValueHedgesDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/DerivativesandHedgingPreTaxNetGainsLossesonFairValueHedgesDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingLargestExposuretoIndividualCounterpartyDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedgingLargestExposuretoIndividualCounterpartyDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/DerivativesandHedgingLargestExposuretoIndividualCounterpartyDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingAdditionalInformationDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#DerivativesandHedgingAdditionalInformationDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/DerivativesandHedgingAdditionalInformationDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/EarningsperShare" xlink:type="simple" xlink:href="wal-20210331.xsd#EarningsperShare"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/EarningsperShareTables" xlink:type="simple" xlink:href="wal-20210331.xsd#EarningsperShareTables"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/EarningsperShareTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/EarningsperShareDetails" xlink:type="simple" xlink:href="wal-20210331.xsd#EarningsperShareDetails"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/EarningsperShareDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/IncomeTaxes" xlink:type="simple" xlink:href="wal-20210331.xsd#IncomeTaxes"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/IncomeTaxes" xlink:type="extended"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="wal-20210331.xsd#CommitmentsandContingencies"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesSummaryofContractualAmountsforUnfundedCommitmentsandLettersofCreditDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#CommitmentsandContingenciesSummaryofContractualAmountsforUnfundedCommitmentsandLettersofCreditDetail"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesLeaseCommitmentsDetails" xlink:type="simple" xlink:href="wal-20210331.xsd#CommitmentsandContingenciesLeaseCommitmentsDetails"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesLeaseCommitmentsDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/FairValueAccounting" xlink:type="simple" xlink:href="wal-20210331.xsd#FairValueAccounting"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingGainsandLossesfromFairValueChangesIncludedinConsolidatedStatementofOperationsDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#FairValueAccountingGainsandLossesfromFairValueChangesIncludedinConsolidatedStatementofOperationsDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/FairValueAccountingGainsandLossesfromFairValueChangesIncludedinConsolidatedStatementofOperationsDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingFairValueofAssetsandLiabilitiesDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#FairValueAccountingFairValueofAssetsandLiabilitiesDetail"/> |
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| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/FairValueAccountingChangeinLevel3LiabilitiesMeasuredatFairValueonRecurringBasisDetail" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingAssetsMeasuredatFairValueonNonrecurringBasisDetail" xlink:type="simple" xlink:href="wal-20210331.xsd#FairValueAccountingAssetsMeasuredatFairValueonNonrecurringBasisDetail"/> |
| <link:calculationLink xlink:role="http://www.westernalliancebancorp.com/role/FairValueAccountingAssetsMeasuredatFairValueonNonrecurringBasisDetail" xlink:type="extended"/> |
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| <link:roleRef roleURI="http://www.westernalliancebancorp.com/role/RevenuefromContractswithCustomersNotes" xlink:type="simple" xlink:href="wal-20210331.xsd#RevenuefromContractswithCustomersNotes"/> |
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