<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2022-08-09T03:39:54.5337402+00:00 -->
<!-- Version            : 5.0.1.747 -->
<!-- Package ID         : 9d7a421facb7435599ba6de025cac81b -->
<!-- Copyright (c) 2022 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="caci_NonCashLeaseExpense" name="NonCashLeaseExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_IncreaseDecreaseInOperatingLeaseLiabilities" name="IncreaseDecreaseInOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_IncreaseDecreaseInLongTermLiabilities" name="IncreaseDecreaseInLongTermLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_LandlordSponsoredTenantIncentives" name="LandlordSponsoredTenantIncentives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_CompositionOfCertainFinancialStatementCaptionsTableTextBlock" name="CompositionOfCertainFinancialStatementCaptionsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_CompositionOfCertainFinancialStatementCaptionsAbstract" name="CompositionOfCertainFinancialStatementCaptionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_BusinessAcquisitionAndIntegrationCostsPolicyPolicyTextBlock" name="BusinessAcquisitionAndIntegrationCostsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_ChangesInEstimatesOnContractsPolicyPolicyTextBlock" name="ChangesInEstimatesOnContractsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_ContractBalancesPolicyTextBlock" name="ContractBalancesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_RemainingPerformanceObligationsPolicyTextBlock" name="RemainingPerformanceObligationsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_SummaryOfLeaseBalancesTableTextBlock" name="SummaryOfLeaseBalancesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FiscalTwoThousandTwentyTwoAcquisitionsMember" name="FiscalTwoThousandTwentyTwoAcquisitionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_CustomerContractsAndRelatedCustomerRelationshipsMember" name="CustomerContractsAndRelatedCustomerRelationshipsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FiscalTwoThousandTwentyOneAcquisitionMember" name="FiscalTwoThousandTwentyOneAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FiscalTwoThousandTwentyAcquisitionsMember" name="FiscalTwoThousandTwentyAcquisitionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_DomesticOperationsMember" name="DomesticOperationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_InternationalOperationsMember" name="InternationalOperationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_CostPlusFeeContractMember" name="CostPlusFeeContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_DepartmentOfDefenseMember" name="DepartmentOfDefenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FederalCivilianAgenciesMember" name="FederalCivilianAgenciesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_CommercialAndOtherMember" name="CommercialAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_PrimeContractorMember" name="PrimeContractorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_SubcontractorMember" name="SubcontractorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_RemainingPerformanceObligationsLineItems" name="RemainingPerformanceObligationsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_RemainingPerformanceObligationsTable" name="RemainingPerformanceObligationsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_BilledAndBillableReceivables" name="BilledAndBillableReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaturityDate" name="TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaturityDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaximumCommitment" name="TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaximumCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesAbstract" name="TransferOfFinancialAssetsAccountedForAsSalesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesCashCollected" name="TransfersOfFinancialAssetsAccountedForAsSalesCashCollected" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding" name="TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser" name="TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables" name="TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_CashProvidedUsedByMARPA" name="CashProvidedUsedByMARPA" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_WriteOffOfFullyAmortizedIntangibleAssets" name="WriteOffOfFullyAmortizedIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_EquipmentAndFurnitureGross" name="EquipmentAndFurnitureGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_ShortTermAndVariableLeaseCost" name="ShortTermAndVariableLeaseCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_OtherAccruedExpensesAndCurrentLiabilitiesMember" name="OtherAccruedExpensesAndCurrentLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_CreditFacilityOptionalIncreasesToBorrowingCapacity" name="CreditFacilityOptionalIncreasesToBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_CreditFacilityOptionalIncreasesToBorrowingCapacityPercentageOfEBITDARestriction" name="CreditFacilityOptionalIncreasesToBorrowingCapacityPercentageOfEBITDARestriction" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_LeverageRatioThatRestrictsOptionalIncreasesToBorrowingCapacity" name="LeverageRatioThatRestrictsOptionalIncreasesToBorrowingCapacity" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_BankCreditFacilityMember" name="BankCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_SameDaySwingLineLoanMember" name="SameDaySwingLineLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_PrincipalPaymentAfterThirtyFirstDecemberTwoThousandTwentyThreeMember" name="PrincipalPaymentAfterThirtyFirstDecemberTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_DeferredPayrollTaxesCurrent" name="DeferredPayrollTaxesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_OtherAccruedExpensesAndCurrentLiabilitiesAbstract" name="OtherAccruedExpensesAndCurrentLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_DeferredPayrollTaxesNoncurrent" name="DeferredPayrollTaxesNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_TreasuryStockSharesAcquiredASRTotal" name="TreasuryStockSharesAcquiredASRTotal" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_AcceleratedShareRepurchaseMember" name="AcceleratedShareRepurchaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities1" name="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="caci_TwoThousandSixStockIncentivePlanMember" name="TwoThousandSixStockIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_TwoThousandSixteenIncentiveCompensationPlanMember" name="TwoThousandSixteenIncentiveCompensationPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_RestrictedStockUnitsMember" name="RestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_StockIncentivePlanExpirationPeriod" name="StockIncentivePlanExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_CumulativeEquityInstrumentsAwarded" name="CumulativeEquityInstrumentsAwarded" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_CumulativeEquityInstrumentsForfeited" name="CumulativeEquityInstrumentsForfeited" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_AverageSharePriceDeterminationPeriod" name="AverageSharePriceDeterminationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_AverageSharePricePerformanceConditionPercentage" name="AverageSharePricePerformanceConditionPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_MaximumEarnedAwardPercentageOfTarget" name="MaximumEarnedAwardPercentageOfTarget" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_PercentageOfEarnedAwardVestingAfterThreeYears" name="PercentageOfEarnedAwardVestingAfterThreeYears" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_PercentageOfEarnedAwardVestingAfterFourYears" name="PercentageOfEarnedAwardVestingAfterFourYears" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_EBITDATargetPerformanceConditionYears" name="EBITDATargetPerformanceConditionYears" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_AdditionalPerformanceBasedRestrictedStockUnitsEarnedPursuantToCondition" name="AdditionalPerformanceBasedRestrictedStockUnitsEarnedPursuantToCondition" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_FiscalYearTwoThousandTwentyTwoPerformanceBasedRestrictedStockUnitsMember" name="FiscalYearTwoThousandTwentyTwoPerformanceBasedRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FiscalYearTwoThousandTwentyOnePerformanceBasedRestrictedStockUnitsMember" name="FiscalYearTwoThousandTwentyOnePerformanceBasedRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_FiscalYearTwoThousandTwentyPerformanceBasedRestrictedStockUnitsMember" name="FiscalYearTwoThousandTwentyPerformanceBasedRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_StockSettledStockAppreciationRightsAndStockOptionsMember" name="StockSettledStockAppreciationRightsAndStockOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_EmployeeStockPurchasePlanMember" name="EmployeeStockPurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_ManagementStockPurchasePlanMember" name="ManagementStockPurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_DirectorStockPurchasePlanMember" name="DirectorStockPurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_PercentageOfFairMarketValue" name="PercentageOfFairMarketValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_ShareBasedCompensationNumberOfShareAuthorizedToBePurchasedByEligibleEmployee" name="ShareBasedCompensationNumberOfShareAuthorizedToBePurchasedByEligibleEmployee" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_CumulativeSharesPurchasedUnderEmployeeStockPurchasePlan" name="CumulativeSharesPurchasedUnderEmployeeStockPurchasePlan" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_CumulativeWeightedAveragePricePerShare" name="CumulativeWeightedAveragePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockIssuedInLieuOfPercentageOfAnnualBonus" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockIssuedInLieuOfPercentageOfAnnualBonus" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_ManagementStockPurchasePlanRestrictedStockUnitsMember" name="ManagementStockPurchasePlanRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="caci_DeferredTaxAssetsOperatingLeaseLiabilities" name="DeferredTaxAssetsOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_DeferredTaxAssetsCreditsAndNetOperatingLossCarryovers" name="DeferredTaxAssetsCreditsAndNetOperatingLossCarryovers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_DefinedContributionPlansMember" name="DefinedContributionPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_SupplementalSavingsPlanMember" name="SupplementalSavingsPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_EmployeeContributionMaximumPercentageOfBonuses" name="EmployeeContributionMaximumPercentageOfBonuses" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_EmployerContributionPercentage" name="EmployerContributionPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="caci_AnnualIrcCompensationLimit" name="AnnualIrcCompensationLimit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_SupplementalSavingsPlanInvestmentGainsLosses" name="SupplementalSavingsPlanInvestmentGainsLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_SupplementalSavingsPlanParticipantCompensationDeferral" name="SupplementalSavingsPlanParticipantCompensationDeferral" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_SupplementalSavingsPlanCOLIGainLosses" name="SupplementalSavingsPlanCOLIGainLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="caci_BusinessSegmentsLineItems" name="BusinessSegmentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_BusinessSegmentsTable" name="BusinessSegmentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="caci_USGovernmentMember" name="USGovernmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xsd:schema>
