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    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001710607</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000080560</seriesId>
        <classId>C000243040</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>American Century ETF Trust</regName>
      <regFileNumber>811-23305</regFileNumber>
      <regCik>0001710607</regCik>
      <regLei>5493006IKK34YJD98183</regLei>
      <regStreet1>4500 Main St</regStreet1>
      <regCity>Kansas City</regCity>
      <regStateConditional regCountry="US" regState="US-MO"/>
      <regZipOrPostalCode>64111</regZipOrPostalCode>
      <regPhone>816-531-5575</regPhone>
      <seriesName>Avantis All International Markets Equity ETF</seriesName>
      <seriesId>S000080560</seriesId>
      <seriesLei>5493000HEKR2AIPSGT36</seriesLei>
      <repPdEnd>2026-08-31</repPdEnd>
      <repPdDate>2025-11-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
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      <totLiabs>10788033.700000000000</totLiabs>
      <netAssets>420281273.510000000000</netAssets>
      <assetsAttrMiscSec>0.000000000000</assetsAttrMiscSec>
      <assetsInvested>0.000000000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.000000000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.000000000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.000000000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.000000000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.000000000000</amtPayAftOneYrBanksBorr>
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      <amtPayAftOneYrOthAffil>0.000000000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.000000000000</amtPayAftOneYrOther>
      <delayDeliv>0.000000000000</delayDeliv>
      <standByCommit>0.000000000000</standByCommit>
      <liquidPref>0.000000000000</liquidPref>
      <cshNotRptdInCorD>0.000000000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="89045.000000000000" lei="549300KUN9K9K32C6D97" name="BNP PARIBAS PRIME BROKERAGE INTERNATIONAL LIMITED"/>
        <borrower aggrVal="44580.070000000000" lei="549300HN4UKV1E2R3U73" name="BOFA SECURITIES, INC."/>
        <borrower aggrVal="10483200.000000000000" lei="ZBUT11V806EZRVTWT807" name="JP MORGAN SECURITIES LLC"/>
      </borrowers>
      <aggregateCondition isNonCashCollateral="Y">
        <aggregateInfos>
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            <invstCat>UST</invstCat>
          </aggregateInfo>
        </aggregateInfos>
      </aggregateCondition>
      <returnInfo>
        <monthlyTotReturns>
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        </monthlyTotReturns>
        <othMon1 netRealizedGain="886419.7900" netUnrealizedAppr="10911389.5000"/>
        <othMon2 netRealizedGain="0.0000" netUnrealizedAppr="4317109.4100"/>
        <othMon3 netRealizedGain="523868.3400" netUnrealizedAppr="5716731.2000"/>
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      <mon1Flow redemption="3498315.0000" reinvestment="0.0000" sales="24650560.5000"/>
      <mon2Flow redemption="0.0000" reinvestment="0.0000" sales="17992324.0000"/>
      <mon3Flow redemption="1963783.2500" reinvestment="0.0000" sales="19576451.5000"/>



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        <name>Avantis Emerging Markets Small Cap Equity ETF</name>
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        <title>Avantis Emerging Markets Small Cap Equity ETF</title>
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        <units>NS</units>
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        <payoffProfile>Long</payoffProfile>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
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      <invstOrSec>
        <name>Avantis International Equity ETF</name>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <loanByFundCondition isLoanByFund="Y" loanVal="89045.000000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State Street Navigator Securities Lending Trust - State Street Navigator Securities Lending Government Money Market Portfolio</name>
        <lei>5493008BJIBKQ5KTIF74</lei>
        <title>State Street Navigator Securities Lending Government Money Market Portfolio</title>
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        <identifiers>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="10778025.000000000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
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      <invstOrSec>
        <name>Avantis International Large Cap Value ETF</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      </invstOrSec>
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        <name>Avantis Emerging Markets Value ETF</name>
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        <title>Avantis Emerging Markets Value ETF</title>
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        <identifiers>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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        <title>Avantis International Small Cap Value ETF</title>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
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      </invstOrSec>
      <invstOrSec>
        <name>State Street Institutional US Government Money Market Fund</name>
        <lei>549300BZ5TGIFZUZDZ37</lei>
        <title>State Street Institutional US Government Money Market Fund</title>
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        <identifiers>
          <isin value="US8574927062"/>
          <ticker value="GVMXX"/>
          <other otherDesc="SEDOL" value="B284MN4"/>
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        <curCd>USD</curCd>
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        <fairValLevel>1</fairValLevel>
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      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2026-01-27</ncom:dateSigned>
      <ncom:nameOfApplicant>American Century ETF Trust</ncom:nameOfApplicant>
      <ncom:signature>Amy R. Bitter</ncom:signature>
      <ncom:signerName>Amy R. Bitter</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
