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    <isConfidential>false</isConfidential>
    <filerInfo>

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


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        <classId>C000243041</classId>
      </seriesClassInfo>


    </filerInfo>
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      <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 Value ETF</seriesName>
      <seriesId>S000080561</seriesId>
      <seriesLei>5493000HEMRLPZYT5E71</seriesLei>
      <repPdEnd>2025-08-31</repPdEnd>
      <repPdDate>2025-02-28</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
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      <totAssets>4183348.370000000000</totAssets>
      <totLiabs>100.210000000000</totLiabs>
      <netAssets>4183248.160000000000</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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      <liquidPref>0.000000000000</liquidPref>
      <cshNotRptdInCorD>0.000000000000</cshNotRptdInCorD>
      <isNonCashCollateral>N</isNonCashCollateral>
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        <monthlyTotReturns>
          <monthlyTotReturn classId="C000243041" rtn1="-2.353776725274" rtn2="2.431187844604" rtn3="1.965621504320"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="0.0000" netUnrealizedAppr="-138594.7600"/>
        <othMon2 netRealizedGain="0.0000" netUnrealizedAppr="86627.0300"/>
        <othMon3 netRealizedGain="0.0000" netUnrealizedAppr="72633.3400"/>
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      <mon1Flow redemption="0" reinvestment="0" sales="0"/>
      <mon2Flow redemption="0" reinvestment="0" sales="694674.75"/>
      <mon3Flow redemption="0" reinvestment="0" sales="291033.5"/>



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    <invstOrSecs>
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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>
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      <invstOrSec>
        <name>Avantis International Large Cap Value ETF</name>
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        <title>Avantis International Large Cap Value ETF</title>
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        <units>NS</units>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      </invstOrSec>
      <invstOrSec>
        <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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        <curCd>USD</curCd>
        <valUSD>1197262.6800000000</valUSD>
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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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          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </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"/>
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        </identifiers>
        <balance>4075.9800000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4075.9800000000</valUSD>
        <pctVal>0.0974357687</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
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        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2025-04-18</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>
</edgarSubmission>
