<?xml version="1.0" encoding="US-ASCII"?>
<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2023-12-13T13:21:34.2115+00:00 -->
<!-- Copyright (c) 2023 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema targetNamespace="http://www.amdocs.com/20230930" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:country="http://xbrl.sec.gov/country/2023" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:srt="http://fasb.org/srt/2023" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:us-gaap="http://fasb.org/us-gaap/2023" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dox="http://www.amdocs.com/20230930" xmlns:xlink="http://www.w3.org/1999/xlink">
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd" namespace="http://xbrl.sec.gov/dei/2023"/>
  <xsd:import schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd" namespace="http://xbrl.org/2020/extensible-enumerations-2.0"/>
  <xsd:import schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd" namespace="http://www.xbrl.org/dtr/type/2022-03-31"/>
  <xsd:import schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd" namespace="http://fasb.org/us-gaap/2023"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/country/2023/country-2023.xsd" namespace="http://xbrl.sec.gov/country/2023"/>
  <xsd:import schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd" namespace="http://fasb.org/srt/2023"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="dox-20230930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Labels link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="dox-20230930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="dox-20230930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="dox-20230930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:title="Calculation link" xlink:type="simple"/>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/Cover" id="Cover">
        <link:definition>100000 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedBalanceSheets" id="ConsolidatedBalanceSheets">
        <link:definition>100010 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedBalanceSheetsParenthetical" id="ConsolidatedBalanceSheetsParenthetical">
        <link:definition>100020 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfIncome" id="ConsolidatedStatementsOfIncome">
        <link:definition>100030 - Statement - Consolidated Statements of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfComprehensiveIncome" id="ConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>100040 - Statement - Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical" id="ConsolidatedStatementsOfComprehensiveIncomeParenthetical">
        <link:definition>100050 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfChangesInShareholdersEquity" id="ConsolidatedStatementsOfChangesInShareholdersEquity">
        <link:definition>100060 - Statement - Consolidated Statements of Changes in Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfChangesInShareholdersEquityParenthetical" id="ConsolidatedStatementsOfChangesInShareholdersEquityParenthetical">
        <link:definition>100070 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfCashFlows" id="ConsolidatedStatementsOfCashFlows">
        <link:definition>100080 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ConsolidatedStatementsOfCashFlowsParenthetical" id="ConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>100090 - Statement - Consolidated Statements of Cash Flows (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/NatureOfEntity" id="NatureOfEntity">
        <link:definition>100100 - Disclosure - Nature of Entity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
        <link:definition>100110 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AcquisitionsAndDivestitureOfASubsidiary" id="AcquisitionsAndDivestitureOfASubsidiary">
        <link:definition>100120 - Disclosure - Acquisitions and Divestiture of a Subsidiary</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/Revenue" id="Revenue">
        <link:definition>100130 - Disclosure - Revenue</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/FairValueMeasurements" id="FairValueMeasurements">
        <link:definition>100140 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AvailableForSaleSecurities" id="AvailableForSaleSecurities">
        <link:definition>100150 - Disclosure - Available-For-Sale Securities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstruments" id="DerivativeFinancialInstruments">
        <link:definition>100160 - Disclosure - Derivative Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/PropertyAndEquipmentNet" id="PropertyAndEquipmentNet">
        <link:definition>100170 - Disclosure - Property and Equipment, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNet" id="GoodwillAndIntangibleAssetsNet">
        <link:definition>100180 - Disclosure - Goodwill and Intangible Assets, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureRestructuringCharges" id="DisclosureRestructuringCharges">
        <link:definition>100190 - Disclosure - Restructuring Charges</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxes" id="IncomeTaxes">
        <link:definition>100200 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RepurchaseOfShares" id="RepurchaseOfShares">
        <link:definition>100210 - Disclosure - Repurchase of Shares</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/FinancingArrangements" id="FinancingArrangements">
        <link:definition>100220 - Disclosure - Financing Arrangements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AccruedExpensesAndOtherCurrentLiabilities" id="AccruedExpensesAndOtherCurrentLiabilities">
        <link:definition>100230 - Disclosure - Accrued Expenses and Other Current Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/InterestAndOtherExpenseNet" id="InterestAndOtherExpenseNet">
        <link:definition>100240 - Disclosure - Interest and other expense, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/Leases" id="Leases">
        <link:definition>100250 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ContingenciesAndCommitments" id="ContingenciesAndCommitments">
        <link:definition>100260 - Disclosure - Contingencies and Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EmployeeBenefits" id="EmployeeBenefits">
        <link:definition>100270 - Disclosure - Employee Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensation" id="DisclosureEquitybasedCompensation">
        <link:definition>100280 - Disclosure - Equity-based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/Dividends" id="Dividends">
        <link:definition>100290 - Disclosure - Dividends</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EarningsPerShare" id="EarningsPerShare">
        <link:definition>100300 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomers" id="SegmentInformationAndSalesToSignificantCustomers">
        <link:definition>100310 - Disclosure - Segment Information and Sales to Significant Customers</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SelectedQuarterlyResultsOfOperationsUnaudited" id="SelectedQuarterlyResultsOfOperationsUnaudited">
        <link:definition>100320 - Disclosure - Selected Quarterly Results of Operations (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ValuationAndQualifyingAccounts" id="ValuationAndQualifyingAccounts">
        <link:definition>100330 - Disclosure - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureSubsequentEvent" id="DisclosureSubsequentEvent">
        <link:definition>100340 - Disclosure - Subsequent Event</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>100350 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RevenueTables" id="RevenueTables">
        <link:definition>100360 - Disclosure - Revenue (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
        <link:definition>100370 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AvailableForSaleSecuritiesTables" id="AvailableForSaleSecuritiesTables">
        <link:definition>100380 - Disclosure - Available-For-Sale Securities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsTables" id="DerivativeFinancialInstrumentsTables">
        <link:definition>100390 - Disclosure - Derivative Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/PropertyAndEquipmentNetTables" id="PropertyAndEquipmentNetTables">
        <link:definition>100400 - Disclosure - Property and Equipment, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetTables" id="GoodwillAndIntangibleAssetsNetTables">
        <link:definition>100410 - Disclosure - Goodwill and Intangible Assets, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <link:definition>100420 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AccruedExpensesAndOtherCurrentLiabilitiesTables" id="AccruedExpensesAndOtherCurrentLiabilitiesTables">
        <link:definition>100430 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/InterestAndOtherExpenseNetTables" id="InterestAndOtherExpenseNetTables">
        <link:definition>100440 - Disclosure - Interest and other expense, net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/LeasesTables" id="LeasesTables">
        <link:definition>100450 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationTables" id="DisclosureEquitybasedCompensationTables">
        <link:definition>100460 - Disclosure - Equity-based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DividendsTables" id="DividendsTables">
        <link:definition>100470 - Disclosure - Dividends (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EarningsPerShareTables" id="EarningsPerShareTables">
        <link:definition>100480 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersTables" id="SegmentInformationAndSalesToSignificantCustomersTables">
        <link:definition>100490 - Disclosure - Segment Information and Sales to Significant Customers (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SelectedQuarterlyResultsOfOperationsUnauditedTables" id="SelectedQuarterlyResultsOfOperationsUnauditedTables">
        <link:definition>100500 - Disclosure - Selected Quarterly Results of Operations (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ValuationAndQualifyingAccountsTables" id="ValuationAndQualifyingAccountsTables">
        <link:definition>100510 - Disclosure - Valuation and Qualifying Accounts (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/NatureOfEntityAdditionalInformationDetail" id="NatureOfEntityAdditionalInformationDetail">
        <link:definition>100520 - Disclosure - Nature of Entity - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SummaryOfSignificantAccountingPoliciesConsolidationAndPropertyAndEquipmentAdditionalInformationDetail" id="SummaryOfSignificantAccountingPoliciesConsolidationAndPropertyAndEquipmentAdditionalInformationDetail">
        <link:definition>100530 - Disclosure - Summary of Significant Accounting Policies - Consolidation and Property and Equipment - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SummaryOfSignificantAccountingPoliciesRevenueRecognitionAndConcentrationsOfCreditRiskAdditionalInformationDetail" id="SummaryOfSignificantAccountingPoliciesRevenueRecognitionAndConcentrationsOfCreditRiskAdditionalInformationDetail">
        <link:definition>100540 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition and Concentrations of Credit Risk - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AcquisitionsAndDivestitureOfASubsidiaryAdditionalInformationDetail" id="AcquisitionsAndDivestitureOfASubsidiaryAdditionalInformationDetail">
        <link:definition>100550 - Disclosure - Acquisitions and Divestiture of a Subsidiary - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RevenueSummaryOfAccountsReceivableBilledAndUnbilledAndDeferredRevenueDetail" id="RevenueSummaryOfAccountsReceivableBilledAndUnbilledAndDeferredRevenueDetail">
        <link:definition>100560 - Disclosure - Revenue - Summary of Accounts Receivable Billed and Unbilled and Deferred Revenue (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RevenueSummaryOfAccountsReceivableBilledAndUnbilledAndDeferredRevenueParentheticalDetail" id="RevenueSummaryOfAccountsReceivableBilledAndUnbilledAndDeferredRevenueParentheticalDetail">
        <link:definition>100570 - Disclosure - Revenue - Summary of Accounts Receivable Billed and Unbilled and Deferred Revenue (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RevenueAdditionalInformationDetail" id="RevenueAdditionalInformationDetail">
        <link:definition>100580 - Disclosure - Revenue - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/FairValueMeasurementsFairValueMeasurementOnCompanysAssetsAndLiabilitiesDetail" id="FairValueMeasurementsFairValueMeasurementOnCompanysAssetsAndLiabilitiesDetail">
        <link:definition>100590 - Disclosure - Fair Value Measurements - Fair Value Measurement on Company's Assets and Liabilities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AvailableForSaleSecuritiesInterestBearingInvestmentsInAvailableForSaleSecuritiesDetail" id="AvailableForSaleSecuritiesInterestBearingInvestmentsInAvailableForSaleSecuritiesDetail">
        <link:definition>100600 - Disclosure - Available-for-Sale Securities - Interest-bearing Investments in Available-for-Sale Securities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AvailableForSaleSecuritiesInterestBearingInvestmentsInAvailableForSaleSecuritiesParentheticalDetail" id="AvailableForSaleSecuritiesInterestBearingInvestmentsInAvailableForSaleSecuritiesParentheticalDetail">
        <link:definition>100610 - Disclosure - Available-for-Sale Securities - Interest-bearing Investments in Available-for-Sale Securities (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AvailableForSaleSecuritiesAvailableForSaleSecuritiesDebtMaturitiesMarketValueDetail" id="AvailableForSaleSecuritiesAvailableForSaleSecuritiesDebtMaturitiesMarketValueDetail">
        <link:definition>100620 - Disclosure - Available-for-Sale Securities - Available-for-Sale Securities Debt Maturities Market Value (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsAdditionalInformationDetail" id="DerivativeFinancialInstrumentsAdditionalInformationDetail">
        <link:definition>100630 - Disclosure - Derivative Financial Instruments - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsNotionalAmountsOfDerivativeInstrumentsDetail" id="DerivativeFinancialInstrumentsNotionalAmountsOfDerivativeInstrumentsDetail">
        <link:definition>100640 - Disclosure - Derivative Financial Instruments - Notional Amounts of Derivative Instruments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsFairValueOfOpenForeignCurrencyExchangeContractsDetail" id="DerivativeFinancialInstrumentsFairValueOfOpenForeignCurrencyExchangeContractsDetail">
        <link:definition>100650 - Disclosure - Derivative Financial Instruments - Fair Value of Open Foreign Currency Exchange Contracts (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsEffectOfCashFlowHedgingInstrumentsDetail" id="DerivativeFinancialInstrumentsEffectOfCashFlowHedgingInstrumentsDetail">
        <link:definition>100660 - Disclosure - Derivative Financial Instruments - Effect of Cash Flow Hedging Instruments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsChangesInNetUnrealizedGainsLossesOnCashFlowHedgesDetail" id="DerivativeFinancialInstrumentsChangesInNetUnrealizedGainsLossesOnCashFlowHedgesDetail">
        <link:definition>100670 - Disclosure - Derivative Financial Instruments - Changes in Net Unrealized Gains (Losses) on Cash Flow Hedges (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DerivativeFinancialInstrumentsEffectOfNonDesignatedAsHedgingInstrumentsDetail" id="DerivativeFinancialInstrumentsEffectOfNonDesignatedAsHedgingInstrumentsDetail">
        <link:definition>100680 - Disclosure - Derivative Financial Instruments - Effect of Non-Designated as Hedging Instruments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/PropertyAndEquipmentNetComponentsOfPropertyAndEquipmentNetDetail" id="PropertyAndEquipmentNetComponentsOfPropertyAndEquipmentNetDetail">
        <link:definition>100690 - Disclosure - Property and Equipment, Net - Components of Property and Equipment, Net (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/PropertyAndEquipmentNetAdditionalInformationDetail" id="PropertyAndEquipmentNetAdditionalInformationDetail">
        <link:definition>100700 - Disclosure - Property and Equipment, Net - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetDetailsOfTotalGoodwillDetail" id="GoodwillAndIntangibleAssetsNetDetailsOfTotalGoodwillDetail">
        <link:definition>100710 - Disclosure - Goodwill and Intangible Assets, Net - Details of Total Goodwill (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetDetailsOfTotalGoodwillParentheticalDetail" id="GoodwillAndIntangibleAssetsNetDetailsOfTotalGoodwillParentheticalDetail">
        <link:definition>100720 - Disclosure - Goodwill and Intangible Assets, Net - Details of Total Goodwill (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetAdditionalInformationDetail" id="GoodwillAndIntangibleAssetsNetAdditionalInformationDetail">
        <link:definition>100730 - Disclosure - Goodwill and Intangible Assets, Net - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetDetailsRegardingTotalDefiniteLivedPurchasedIntangibleAssetsDetail" id="GoodwillAndIntangibleAssetsNetDetailsRegardingTotalDefiniteLivedPurchasedIntangibleAssetsDetail">
        <link:definition>100740 - Disclosure - Goodwill and Intangible Assets, Net - Details Regarding Total Definite-Lived Purchased Intangible Assets (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/GoodwillAndIntangibleAssetsNetEstimatedFutureAmortizationExpenseDetail" id="GoodwillAndIntangibleAssetsNetEstimatedFutureAmortizationExpenseDetail">
        <link:definition>100750 - Disclosure - Goodwill and Intangible Assets, Net - Estimated Future Amortization Expense (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureRestructuringChargesAdditionalInformationDetails" id="DisclosureRestructuringChargesAdditionalInformationDetails">
        <link:definition>100760 - Disclosure - Restructuring Charges (Additional Information) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesProvisionBenefitForIncomeTaxesDetail" id="IncomeTaxesProvisionBenefitForIncomeTaxesDetail">
        <link:definition>100770 - Disclosure - Income Taxes - Provision (Benefit) for Income Taxes (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesAdditionalInformationDetail" id="IncomeTaxesAdditionalInformationDetail">
        <link:definition>100780 - Disclosure - Income Taxes - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetail" id="IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetail">
        <link:definition>100790 - Disclosure - Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesEffectiveIncomeTaxRateVariedFromStatutoryGuernseyTaxRateDetail" id="IncomeTaxesEffectiveIncomeTaxRateVariedFromStatutoryGuernseyTaxRateDetail">
        <link:definition>100800 - Disclosure - Income Taxes - Effective Income Tax Rate Varied from Statutory Guernsey Tax Rate (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesEffectiveIncomeTaxRateVariedFromStatutoryGuernseyTaxRateParentheticalDetail" id="IncomeTaxesEffectiveIncomeTaxRateVariedFromStatutoryGuernseyTaxRateParentheticalDetail">
        <link:definition>100810 - Disclosure - Income Taxes - Effective Income Tax Rate Varied from Statutory Guernsey Tax Rate (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesAggregateChangesInBalanceOfCompanysGrossUnrecognizedTaxBenefitsDetail" id="IncomeTaxesAggregateChangesInBalanceOfCompanysGrossUnrecognizedTaxBenefitsDetail">
        <link:definition>100820 - Disclosure - Income Taxes - Aggregate Changes in Balance of Company's Gross Unrecognized Tax Benefits (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/IncomeTaxesAggregateChangesInBalanceOfCompanysGrossUnrecognizedTaxBenefitsParentheticalDetail" id="IncomeTaxesAggregateChangesInBalanceOfCompanysGrossUnrecognizedTaxBenefitsParentheticalDetail">
        <link:definition>100830 - Disclosure - Income Taxes - Aggregate Changes in Balance of Company's Gross Unrecognized Tax Benefits (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/RepurchaseOfSharesAdditionalInformationDetail" id="RepurchaseOfSharesAdditionalInformationDetail">
        <link:definition>100840 - Disclosure - Repurchase of Shares - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/FinancingArrangementsAdditionalInformationDetail" id="FinancingArrangementsAdditionalInformationDetail">
        <link:definition>100850 - Disclosure - Financing Arrangements - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/AccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail" id="AccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail">
        <link:definition>100860 - Disclosure - Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/InterestAndOtherExpenseNetInterestAndOtherExpenseNetDetail" id="InterestAndOtherExpenseNetInterestAndOtherExpenseNetDetail">
        <link:definition>100870 - Disclosure - Interest and Other Expense, Net - Interest and Other Expense, Net (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/LeasesDisclosureOfLeaseCostDetail" id="LeasesDisclosureOfLeaseCostDetail">
        <link:definition>100880 - Disclosure - Leases - Disclosure of Lease Cost (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/LeasesSummaryOfSupplementalInformationRelatedToOperatingLeaseDetail" id="LeasesSummaryOfSupplementalInformationRelatedToOperatingLeaseDetail">
        <link:definition>100890 - Disclosure - Leases - Summary of Supplemental Information Related to Operating Lease  (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/LeasesFutureUndiscountedCashOutflowsForOperatingLeasesMaturityDetail" id="LeasesFutureUndiscountedCashOutflowsForOperatingLeasesMaturityDetail">
        <link:definition>100900 - Disclosure - Leases - Future Undiscounted Cash Outflows for Operating Leases Maturity (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EmployeeBenefitsAdditionalInformationDetail" id="EmployeeBenefitsAdditionalInformationDetail">
        <link:definition>100910 - Disclosure - Employee Benefits - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationAdditionalInformationDetail" id="DisclosureEquitybasedCompensationAdditionalInformationDetail">
        <link:definition>100920 - Disclosure - Equity-based Compensation - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationSummaryOfOptionActivityDetail" id="DisclosureEquitybasedCompensationSummaryOfOptionActivityDetail">
        <link:definition>100930 - Disclosure - Equity-based Compensation - Summary of Option Activity (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationSummaryOfOptionActivityParentheticalDetail" id="DisclosureEquitybasedCompensationSummaryOfOptionActivityParentheticalDetail">
        <link:definition>100940 - Disclosure - Equity-based Compensation - Summary of Option Activity (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationSummaryOfRestrictedStockAndRestrictedStockUnitsActivityDetail" id="DisclosureEquitybasedCompensationSummaryOfRestrictedStockAndRestrictedStockUnitsActivityDetail">
        <link:definition>100950 - Disclosure - Equity-based Compensation - Summary of Restricted Stock and Restricted Stock Units Activity (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationEmployeeEquitybasedCompensationPretaxExpenseDetail" id="DisclosureEquitybasedCompensationEmployeeEquitybasedCompensationPretaxExpenseDetail">
        <link:definition>100960 - Disclosure - Equity-based Compensation - Employee Equity-Based Compensation Pre-Tax Expense (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationAssumptionsUsedInCalculatingFairValueOfOptionsDetail" id="DisclosureEquitybasedCompensationAssumptionsUsedInCalculatingFairValueOfOptionsDetail">
        <link:definition>100970 - Disclosure - Equity-based Compensation - Assumptions Used in Calculating Fair Value of Options (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureEquitybasedCompensationAssumptionsUsedInCalculatingFairValueOfOptionsParentheticalDetail" id="DisclosureEquitybasedCompensationAssumptionsUsedInCalculatingFairValueOfOptionsParentheticalDetail">
        <link:definition>100980 - Disclosure - Equity-based Compensation - Assumptions Used in Calculating Fair Value of Options (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DividendsSummaryOfDividendsDeclaredByBoardOfDirectorsDetail" id="DividendsSummaryOfDividendsDeclaredByBoardOfDirectorsDetail">
        <link:definition>100990 - Disclosure - Dividends - Summary of Dividends Declared by Board of directors (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DividendsAdditionalInformationDetail" id="DividendsAdditionalInformationDetail">
        <link:definition>101000 - Disclosure - Dividends - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EarningsPerShareComputationOfBasicAndDilutedEarningsPerShareDetail" id="EarningsPerShareComputationOfBasicAndDilutedEarningsPerShareDetail">
        <link:definition>101010 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/EarningsPerShareAdditionalInformationDetail" id="EarningsPerShareAdditionalInformationDetail">
        <link:definition>101020 - Disclosure - Earnings Per Share - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersSummaryOfRevenueByGeographicAreaDetail" id="SegmentInformationAndSalesToSignificantCustomersSummaryOfRevenueByGeographicAreaDetail">
        <link:definition>101030 - Disclosure - Segment Information and Sales to Significant Customers - Summary of Revenue by Geographic Area (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersSummaryOfLongLivedAssetsByGeographicAreaDetail" id="SegmentInformationAndSalesToSignificantCustomersSummaryOfLongLivedAssetsByGeographicAreaDetail">
        <link:definition>101040 - Disclosure - Segment Information and Sales to Significant Customers - Summary of Long-lived Assets by Geographic Area (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersSummaryOfRevenueByNatureOfActivitiesDetail" id="SegmentInformationAndSalesToSignificantCustomersSummaryOfRevenueByNatureOfActivitiesDetail">
        <link:definition>101050 - Disclosure - Segment Information and Sales to Significant Customers - Summary of Revenue by Nature of Activities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersAdditionalInformationDetail" id="SegmentInformationAndSalesToSignificantCustomersAdditionalInformationDetail">
        <link:definition>101060 - Disclosure - Segment Information and Sales to Significant Customers - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersSummarySalesToSignificantCustomersDetail" id="SegmentInformationAndSalesToSignificantCustomersSummarySalesToSignificantCustomersDetail">
        <link:definition>101070 - Disclosure - Segment Information and Sales to Significant Customers - Summary Sales to Significant Customers (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SegmentInformationAndSalesToSignificantCustomersSummarySalesToSignificantCustomersParentheticalDetail" id="SegmentInformationAndSalesToSignificantCustomersSummarySalesToSignificantCustomersParentheticalDetail">
        <link:definition>101080 - Disclosure - Segment Information and Sales to Significant Customers - Summary Sales to Significant Customers  (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/SelectedQuarterlyResultsOfOperationsQuarterlyResultsOfOperationsDetail" id="SelectedQuarterlyResultsOfOperationsQuarterlyResultsOfOperationsDetail">
        <link:definition>101090 - Disclosure - Selected Quarterly Results of Operations - Quarterly Results of Operations (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ScheduleValuationAndQualifyingAccountsDetail" id="ScheduleValuationAndQualifyingAccountsDetail">
        <link:definition>101100 - Disclosure - Schedule - Valuation and Qualifying Accounts (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/LeasesFutureUndiscountedCashOutflowsForOperatingLeasesMaturityDetailAlternate1" id="LeasesFutureUndiscountedCashOutflowsForOperatingLeasesMaturityDetailAlternate1">
        <link:definition>101110 - Statement - Leases - Future Undiscounted Cash Outflows for Operating Leases Maturity (Detail) Alternate 1</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/ScheduleValuationAndQualifyingAccountsParentheticalDetail" id="ScheduleValuationAndQualifyingAccountsParentheticalDetail">
        <link:definition>101120 - Disclosure - Schedule - Valuation and Qualifying Accounts (Parenthetical) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.amdocs.com/20230930/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetails" id="DisclosureSubsequentEventAdditionalInformationDetails">
        <link:definition>101130 - Disclosure - Subsequent Event (Additional Information) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="dox_GoodwillIntangibleAssetsAndLongLivedAssetsPolicyTextBlock" name="GoodwillIntangibleAssetsAndLongLivedAssetsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DividendDeclarationDateMayTwelveTwoThousandTwentyOneMember" name="DividendDeclarationDateMayTwelveTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DerivativeInstruments" name="DerivativeInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_LossesGainsReclassifiedFromAccumulatedOtherComprehensiveLossIncomeEffectivePortion" name="LossesGainsReclassifiedFromAccumulatedOtherComprehensiveLossIncomeEffectivePortion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_DeferredTaxAssetsIntangibleAssetsAndComputerSoftware" name="DeferredTaxAssetsIntangibleAssetsAndComputerSoftware" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_AnnualGeneralMeetingDate" name="AnnualGeneralMeetingDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_ValuationAndQualifyingAccountsDisclosureTableTextBlockTableTextBlock" name="ValuationAndQualifyingAccountsDisclosureTableTextBlockTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_ComputersEquipmentAndSoftwareMember" name="ComputersEquipmentAndSoftwareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_IncomeTaxReconciliationForeignTaxBenefitFromInternalStructuralChanges" name="IncomeTaxReconciliationForeignTaxBenefitFromInternalStructuralChanges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_OtherComprehensiveIncomeLossInNetGainLossFromCashFlowHedgesNetOfTax" name="OtherComprehensiveIncomeLossInNetGainLossFromCashFlowHedgesNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_InterestExpenseIncomeMember" name="InterestExpenseIncomeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_TreasuryStockPolicyTextBlock" name="TreasuryStockPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_EffectOfCashFlowHedgingInstrumentsTableTextBlock" name="EffectOfCashFlowHedgingInstrumentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeasesTable" name="DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeasesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DepreciationAmortizationAndImpairment" name="DepreciationAmortizationAndImpairment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_OtherComprehensiveIncomeDerivativeInstrumentsClassifiedAsHedgesNetOfTaxAttributableToParent" name="OtherComprehensiveIncomeDerivativeInstrumentsClassifiedAsHedgesNetOfTaxAttributableToParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_RestOfWorldMember" name="RestOfWorldMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DividendDeclarationDateNovemberEightTwoThousandTwentyTwoMember" name="DividendDeclarationDateNovemberEightTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFourYearsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFourYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_TaxCreditsNetCapitalAndOperatingLossCarryforwards" name="TaxCreditsNetCapitalAndOperatingLossCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DividendDeclarationDateFebruaryOneTwoThousandTwentyTwoMember" name="DividendDeclarationDateFebruaryOneTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ImmaterialImpairmentOfLongLivedAssets" name="ImmaterialImpairmentOfLongLivedAssets" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_OtherComprehensiveIncomeLossesUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax" name="OtherComprehensiveIncomeLossesUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_RecentAccountingPronouncementsPolicyTextBlock" name="RecentAccountingPronouncementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeaseLineItems" name="DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeaseLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DisposalGroupNotDiscontinuedOperationGainLossOnDisposals" name="DisposalGroupNotDiscontinuedOperationGainLossOnDisposals" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_ComputerEquipmentAndSoftwareMember" name="ComputerEquipmentAndSoftwareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AccruedExpensesAndOtherCurrentliabilitiesTableTextBlock" name="AccruedExpensesAndOtherCurrentliabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_ProceedsFromSaleOfOpenMarket" name="ProceedsFromSaleOfOpenMarket" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_RepaymentsOfRevolvingCreditFacility" name="RepaymentsOfRevolvingCreditFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_NetDeferredTaxLiabilitiesAssets" name="NetDeferredTaxLiabilitiesAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_DeferredTaxLiabilitiesIntangibleAssetsAndComputerSoftware" name="DeferredTaxLiabilitiesIntangibleAssetsAndComputerSoftware" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_DividendDeclarationDateMayTenTwoThousandTwentyThreeMember" name="DividendDeclarationDateMayTenTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DevopsAndRoamMember" name="DevopsAndRoamMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AccruedExpensesAndOtherCurrentLiabilitiesTextBlock" name="AccruedExpensesAndOtherCurrentLiabilitiesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_ProjectRelatedProvisions" name="ProjectRelatedProvisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_TaxBenefitChangeInMeasurementOfADeferredTaxLiability" name="TaxBenefitChangeInMeasurementOfADeferredTaxLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_DividendDeclarationDateNovemberTenTwoThousandTwentyMember" name="DividendDeclarationDateNovemberTenTwoThousandTwentyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AccountsReceivablesAllowances" name="AccountsReceivablesAllowances" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_CustomerOneMember" name="CustomerOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AllowanceForDoubtfulAccountsCurrent1Member" name="AllowanceForDoubtfulAccountsCurrent1Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_CashPaidForAbstract" name="CashPaidForAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_TeocoMember" name="TeocoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_TwoCustomersWithMoreThan10Percent" name="TwoCustomersWithMoreThan10Percent" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_ProcomMember" name="ProcomMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_RoamMember" name="RoamMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_RepaymentsOfShortTermLoans" name="RepaymentsOfShortTermLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_DerivativeNotionalAmount1" name="DerivativeNotionalAmount1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_SummaryOfAccountsReceivableAndDeferredRevenueTableTextBlock" name="SummaryOfAccountsReceivableAndDeferredRevenueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_UnbilledReceivablesNoncurrent" name="UnbilledReceivablesNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DividendDeclarationDateMayElevenTwoThousandTwentyTwoMember" name="DividendDeclarationDateMayElevenTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ManagedServicesArrangementsMember" name="ManagedServicesArrangementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ScheduleOfEffectiveIncomeTaxRateReconciliationTable" name="ScheduleOfEffectiveIncomeTaxRateReconciliationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_NoncurrentOutstandingPrincipalPortion" name="NoncurrentOutstandingPrincipalPortion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_TaxBenefitExpensesForAvailableForSale" name="TaxBenefitExpensesForAvailableForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_OtherCountriesMember" name="OtherCountriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_IncomeTaxesMember" name="IncomeTaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_OtherMember" name="OtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DistributionToNoncontrollingInterests" name="DistributionToNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeYearsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DividendDeclarationDateAugustThirdTwoThousandTwentyTwoMember" name="DividendDeclarationDateAugustThirdTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ShareRepurchaseProgram2021PlanMember" name="ShareRepurchaseProgram2021PlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DividendDeclarationDateJanuaryThirtyOneTwoThousandTwentyThreeMember" name="DividendDeclarationDateJanuaryThirtyOneTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_IncreaseDecreaseInLeaseAssetsAndLiabilities" name="IncreaseDecreaseInLeaseAssetsAndLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_TwoCustomersMember" name="TwoCustomersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpenseBenefit" name="UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpenseBenefit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DebtInstrumentMaturityMonthYearExtended" name="DebtInstrumentMaturityMonthYearExtended" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DisclosureOfDividendsDeclaredAndPaidTextBlock" name="DisclosureOfDividendsDeclaredAndPaidTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_UndistributedEarningsLossReallocatedToParticipatingSecuritiesDiluted" name="UndistributedEarningsLossReallocatedToParticipatingSecuritiesDiluted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DividendDeclarationDateNovemberTwoTwoThousandTwentyOneMember" name="DividendDeclarationDateNovemberTwoTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_RateOfPurchasePricePerOrdinaryShare" name="RateOfPurchasePricePerOrdinaryShare" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_MaturityPeriodOfShortTermInterestBearingSecuritiesIncludedInCashAndCashEquivalents" name="MaturityPeriodOfShortTermInterestBearingSecuritiesIncludedInCashAndCashEquivalents" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_AccruedExpenses" name="AccruedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_SummaryOfSupplementalInformationRelatedToOperatingLeaseTableTextBlock" name="SummaryOfSupplementalInformationRelatedToOperatingLeaseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_SourcedMember" name="SourcedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_MinimumPercentageOfSalesToSignificantCustomer" name="MinimumPercentageOfSalesToSignificantCustomer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_OngoingAccruedExpenses" name="OngoingAccruedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_EffectOfNonDesignatedAsHedgingInstrumentsTableTextBlock" name="EffectOfNonDesignatedAsHedgingInstrumentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_FunctionalCurrencyPolicyTextBlock" name="FunctionalCurrencyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DeferredTaxAssetsLeaseLiabilities" name="DeferredTaxAssetsLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_EquipmentAndLeaseholdImprovementsByGeographicAreasTableTextBlock" name="EquipmentAndLeaseholdImprovementsByGeographicAreasTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DevopsMember" name="DevopsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ScheduleOfEffectiveIncomeTaxRateReconciliationLineItems" name="ScheduleOfEffectiveIncomeTaxRateReconciliationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_CoreTechnologyMember" name="CoreTechnologyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_EmployeeSharePurchasePlanMember" name="EmployeeSharePurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DeferredTaxAssetsDeductibleTaxCreditsNetCapitalAndOperatingLossCarryforwards" name="DeferredTaxAssetsDeductibleTaxCreditsNetCapitalAndOperatingLossCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_UnrecognizedTaxBenefitsReduce" name="UnrecognizedTaxBenefitsReduce" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_ReleasesOfGrossUnrecognizedTaxBenefitsRelatedToSettledArrangementsWithTaxAuthoritiesChangeInMeasurementOfCertainPositionsAndExpirationOfPeriodsSetForthInStatutesOfLimitations" name="ReleasesOfGrossUnrecognizedTaxBenefitsRelatedToSettledArrangementsWithTaxAuthoritiesChangeInMeasurementOfCertainPositionsAndExpirationOfPeriodsSetForthInStatutesOfLimitations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_AccruedExpensesAndOtherCurrentLiabilities" name="AccruedExpensesAndOtherCurrentLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_DividendDeclarationDateAugustTwoTwoThousandTwentyTwoMember" name="DividendDeclarationDateAugustTwoTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeasesAbstract" name="DisclosureOfSupplementalCashFlowInformationRelatedToOperatingLeasesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_RestructuringExpense" name="RestructuringExpense" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_CommonStockOutstandingMember" name="CommonStockOutstandingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AccruedExpensesAndOtherCurrentLiabilitiesMember" name="AccruedExpensesAndOtherCurrentLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_UnrecognizedCompensationExpenseRelatedToTheEspp" name="UnrecognizedCompensationExpenseRelatedToTheEspp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_CustomerTwoMember" name="CustomerTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_MaximumAmountOfLossDueToCreditRisk" name="MaximumAmountOfLossDueToCreditRisk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_FirstInstallmentMember" name="FirstInstallmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_NetCashReceivedFromSaleOfBusiness" name="NetCashReceivedFromSaleOfBusiness" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_PropertyPlantAndEquipmentCapitalizedInterestCostsAbstract" name="PropertyPlantAndEquipmentCapitalizedInterestCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_NorthAmericaMainlyUnitedStatesMember" name="NorthAmericaMainlyUnitedStatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_TaxBenefitInternalStructuralChangesInCertainJurisdictions" name="TaxBenefitInternalStructuralChangesInCertainJurisdictions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_MinimumPercentageOfRevenueFromSignificantCustomer" name="MinimumPercentageOfRevenueFromSignificantCustomer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_BuildingBuildingImprovementsAndLandMember" name="BuildingBuildingImprovementsAndLandMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_AmortizationOfDefiniteLivedPurchasedIntangibleAssets" name="AmortizationOfDefiniteLivedPurchasedIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_ProcomIntangiblesAssets" name="ProcomIntangiblesAssets" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_DividendDeclarationDateFebruaryTwoTwoThousandTwentyOneMember" name="DividendDeclarationDateFebruaryTwoTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_OtherComprehensiveIncomeDerivativeInstrumentsDerivativesDesignatedAsHedgesTaxAttributableToParent" name="OtherComprehensiveIncomeDerivativeInstrumentsDerivativesDesignatedAsHedgesTaxAttributableToParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_OperatingLossCarryforwardsToExpireWithinTwentyYearsFromBalanceSheetDate" name="OperatingLossCarryforwardsToExpireWithinTwentyYearsFromBalanceSheetDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_IncomeTaxReconciliationForeignTaxExpenseForTheEstimatedAdditionalTaxChargeGainFromSaleOfBusiness" name="IncomeTaxReconciliationForeignTaxExpenseForTheEstimatedAdditionalTaxChargeGainFromSaleOfBusiness" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_TaxCreditNetCapitalAndOperatingLossCarryforwardsExpirationDates" name="TaxCreditNetCapitalAndOperatingLossCarryforwardsExpirationDates" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_DividendsPayableAmountIncreasePerShare" name="DividendsPayableAmountIncreasePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_RestructuringPayments" name="RestructuringPayments" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="dox_DividendDeclarationDateAugustFourTwoThousandTwentyOneMember" name="DividendDeclarationDateAugustFourTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_DescriptionOfMaturityPeriodOfOtherRiskManagementDerivatives" name="DescriptionOfMaturityPeriodOfOtherRiskManagementDerivatives" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="dox_AvailableForSaleSecuritiesDebtMaturitiesAThreafter" name="AvailableForSaleSecuritiesDebtMaturitiesAThreafter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_FiscalYearTwentyTwentyFourMember" name="FiscalYearTwentyTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="dox_ReclassificationOfLossesGainsIntoEarningsNetOfTax" name="ReclassificationOfLossesGainsIntoEarningsNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="dox_DeferredTaxAssetsValuationAllowanceWrittenOff" name="DeferredTaxAssetsValuationAllowanceWrittenOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="dox_TeocoAndProcomMember" name="TeocoAndProcomMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
