<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sec.gov/edgar/nport eis_NPORT_Filer.xsd">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001398078</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000018351</seriesId>
        <classId>C000050684</classId>
        <classId>C000050685</classId>
        <classId>C000050686</classId>
        <classId>C000050687</classId>
        <classId>C000166010</classId>
      </seriesClassInfo>

    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>BlackRock Funds II</regName>
      <regFileNumber>811-22061</regFileNumber>
      <regCik>0001398078</regCik>
      <regLei>549300D3TWJFD5S1P721</regLei>
      <regStreet1>100 Bellevue Parkway</regStreet1>
      <regCity>Wilmington</regCity>
      <regStateConditional regCountry="US" regState="US-DE"/>
      <regZipOrPostalCode>19809</regZipOrPostalCode>
      <regPhone>800-441-7762</regPhone>
      <seriesName>BlackRock 80/20 Target Allocation Fund</seriesName>
      <seriesId>S000018351</seriesId>
      <seriesLei>549300GEXLXO4Y2VQN20</seriesLei>
      <repPdEnd>2025-09-30</repPdEnd>
      <repPdDate>2025-03-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>1943654994.38</totAssets>
      <totLiabs>7501334.21</totLiabs>
      <netAssets>1936153660.17</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.00000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.00000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
      <delayDeliv>0.00000000</delayDeliv>
      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <cshNotRptdInCorD>4427634.09000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="6441196.00000000" lei="9R7GPTSO7KV3UQJZQ078" name="MORGAN STANLEY &amp; CO. LLC (US EQUITY SEC LENDING)"/>
      </borrowers>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000050684" rtn1="2.74000000" rtn2="-0.35000000" rtn3="-4.07000000"/>
          <monthlyTotReturn classId="C000050685" rtn1="2.69000000" rtn2="-0.36000000" rtn3="-4.12000000"/>
          <monthlyTotReturn classId="C000050686" rtn1="2.61000000" rtn2="-0.37000000" rtn3="-4.23000000"/>
          <monthlyTotReturn classId="C000050687" rtn1="2.65000000" rtn2="-0.30000000" rtn3="-4.15000000"/>
          <monthlyTotReturn classId="C000166010" rtn1="2.68000000" rtn2="-0.29000000" rtn3="-4.12000000"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <commodityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </commodityContracts>
          <creditContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </creditContracts>
          <equityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </equityContracts>
          <foreignExchgContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </foreignExchgContracts>
          <interestRtContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </interestRtContracts>
          <otherContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </otherContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="-18086.18000000" netUnrealizedAppr="51123339.25000000"/>
        <othMon2 netRealizedGain="6431946.82000000" netUnrealizedAppr="-13895331.49000000"/>
        <othMon3 netRealizedGain="-1106688.75000000" netUnrealizedAppr="-86753411.27000000"/>
      </returnInfo>
      <mon1Flow redemption="35661990.83000000" reinvestment="0.00000000" sales="346698509.13000000"/>
      <mon2Flow redemption="26176561.50000000" reinvestment="0.00000000" sales="36568406.69000000"/>
      <mon3Flow redemption="46402745.23000000" reinvestment="0.00000000" sales="29744682.00000000"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>iShares Core Total USD Bond Market ETF</name>
        <lei>549300IWM5U5LVTDP761</lei>
        <title>iShares Core Total USD Bond Market ETF</title>
        <cusip>46434V613</cusip>
        <identifiers>
          <isin value="US46434V6130"/>
          <ticker value="IUSB"/>
        </identifiers>
        <balance>2210656.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>101867028.48000000</valUSD>
        <pctVal>5.261309087991</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock Liquidity Funds T-Fund</name>
        <lei>5493002L9DNZ83RX7V61</lei>
        <title>BlackRock Liquidity Funds T-Fund</title>
        <cusip>09248U718</cusip>
        <identifiers>
          <isin value="US09248U7182"/>
          <ticker value="TSTXX"/>
        </identifiers>
        <balance>0.03000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>0.03000000</valUSD>
        <pctVal>0.000000001549</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI EAFE Value ETF</name>
        <lei>549300AN74D4XJZB8Y40</lei>
        <title>iShares MSCI EAFE Value ETF</title>
        <cusip>464288877</cusip>
        <identifiers>
          <isin value="US4642888774"/>
          <ticker value="EFV"/>
        </identifiers>
        <balance>1407611.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>82964592.34000000</valUSD>
        <pctVal>4.285021072796</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock Cash Funds - Institutional</name>
        <lei>549300JDHS1T46VWOG19</lei>
        <title>BlackRock Cash Funds - Institutional</title>
        <cusip>066922519</cusip>
        <identifiers>
          <isin value="US0669225197"/>
          <ticker value="BISXX"/>
        </identifiers>
        <balance>6665338.96000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6668671.63000000</valUSD>
        <pctVal>0.344428841945</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="6668671.63000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI USA Quality Factor ETF</name>
        <lei>5493007KMK0CQLE2O168</lei>
        <title>iShares MSCI USA Quality Factor ETF</title>
        <cusip>46432F339</cusip>
        <identifiers>
          <isin value="US46432F3394"/>
          <ticker value="QUAL"/>
        </identifiers>
        <balance>1214369.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>207523518.41000000</valUSD>
        <pctVal>10.71833928675</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares S&amp;P 500 Growth ETF</name>
        <lei>549300RYFG0B8O3DPR13</lei>
        <title>iShares S&amp;P 500 Growth ETF</title>
        <cusip>464287309</cusip>
        <identifiers>
          <isin value="US4642873099"/>
          <ticker value="IVW"/>
        </identifiers>
        <balance>1986128.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>184372262.24000000</valUSD>
        <pctVal>9.522604844483</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares S&amp;P 500 Value ETF</name>
        <lei>549300CBC7RH6BCDVO32</lei>
        <title>iShares S&amp;P 500 Value ETF</title>
        <cusip>464287408</cusip>
        <identifiers>
          <isin value="US4642874089"/>
          <ticker value="IVE"/>
        </identifiers>
        <balance>716496.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>136549807.68000000</valUSD>
        <pctVal>7.052632778537</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core S&amp;P 500 ETF</name>
        <lei>5493007M4YMN8XL48C14</lei>
        <title>iShares Core S&amp;P 500 ETF</title>
        <cusip>464287200</cusip>
        <identifiers>
          <isin value="US4642872000"/>
          <ticker value="IVV"/>
        </identifiers>
        <balance>545394.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>306456888.60000000</valUSD>
        <pctVal>15.82812846440</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares S&amp;P 100 ETF</name>
        <lei>549300G3FWQPUM47D181</lei>
        <title>iShares S&amp;P 100 ETF</title>
        <cusip>464287101</cusip>
        <identifiers>
          <isin value="US4642871010"/>
          <ticker value="OEF"/>
        </identifiers>
        <balance>205824.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>55743313.92000000</valUSD>
        <pctVal>2.879074893007</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>International Tilts Master for BR_AGR</name>
        <lei>N/A</lei>
        <title>International Tilts Master for BR_AGR</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="BRTCP5V18"/>
        </identifiers>
        <balance>4160935.92000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>81209402.44000000</valUSD>
        <pctVal>4.194367632622</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares U.S. Technology ETF</name>
        <lei>5493003RR427QZS78C77</lei>
        <title>iShares U.S. Technology ETF</title>
        <cusip>464287721</cusip>
        <identifiers>
          <isin value="US4642877215"/>
          <ticker value="IYW"/>
        </identifiers>
        <balance>261171.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>36678855.24000000</valUSD>
        <pctVal>1.894418609150</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares U.S. Equity Factor Rotation Active ETF</name>
        <lei>549300GSJ4RMBYLWSX89</lei>
        <title>iShares U.S. Equity Factor Rotation Active ETF</title>
        <cusip>09290C103</cusip>
        <identifiers>
          <isin value="US09290C1036"/>
          <ticker value="DYNF"/>
        </identifiers>
        <balance>3157626.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>153965843.76000000</valUSD>
        <pctVal>7.952150024419</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="6441196.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI EAFE Growth ETF</name>
        <lei>549300TM3QJ7458P4314</lei>
        <title>iShares MSCI EAFE Growth ETF</title>
        <cusip>464288885</cusip>
        <identifiers>
          <isin value="US4642888857"/>
          <ticker value="EFG"/>
        </identifiers>
        <balance>586204.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>58620400.00000000</valUSD>
        <pctVal>3.027672916975</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock Unconstrained Equity Fund</name>
        <lei>U52BPAA65E104NOUF784</lei>
        <title>BlackRock Unconstrained Equity Fund</title>
        <cusip>09251W601</cusip>
        <identifiers>
          <isin value="US09251W6012"/>
          <ticker value="MKEAX"/>
        </identifiers>
        <balance>5598695.34300000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>73006987.27000000</valUSD>
        <pctVal>3.770722787755</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares 10-20 Year Treasury Bond ETF</name>
        <lei>549300MH5J7BUV0VS287</lei>
        <title>iShares 10-20 Year Treasury Bond ETF</title>
        <cusip>464288653</cusip>
        <identifiers>
          <isin value="US4642886539"/>
          <ticker value="TLH"/>
        </identifiers>
        <balance>585712.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>60767620.00000000</valUSD>
        <pctVal>3.138574238713</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock US Mortgage Portfolio</name>
        <lei>7XZIIEG4IA6DDFOL6S68</lei>
        <title>BlackRock US Mortgage Portfolio</title>
        <cusip>56166L303</cusip>
        <identifiers>
          <isin value="US56166L3033"/>
          <ticker value="MSUMX"/>
        </identifiers>
        <balance>4528040.46000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>40752364.14000000</valUSD>
        <pctVal>2.104810427929</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock Strategic Income Opportunities Portfolio</name>
        <lei>WMEVRQ7LCLDEFWERGI49</lei>
        <title>BlackRock Strategic Income Opportunities Portfolio</title>
        <cusip>09260B374</cusip>
        <identifiers>
          <isin value="US09260B3740"/>
          <ticker value="BSIKX"/>
        </identifiers>
        <balance>4236605.01200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>40374845.76000000</valUSD>
        <pctVal>2.085312059191</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI USA Momentum Factor ETF</name>
        <lei>5493002ZOOZ0SN3YYI81</lei>
        <title>iShares MSCI USA Momentum Factor ETF</title>
        <cusip>46432F396</cusip>
        <identifiers>
          <isin value="US46432F3964"/>
          <ticker value="MTUM"/>
        </identifiers>
        <balance>271798.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>54938529.74000000</valUSD>
        <pctVal>2.837508761323</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BlackRock Total Return Fund</name>
        <lei>549300WQF7SM1NEFDT68</lei>
        <title>BlackRock Total Return Fund</title>
        <cusip>09252M743</cusip>
        <identifiers>
          <isin value="US09252M7433"/>
          <ticker value="MPHQX"/>
        </identifiers>
        <balance>10251956.75100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>101186813.13000000</valUSD>
        <pctVal>5.226176786046</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Blackrock Technology Opportunities</name>
        <lei>549300ED38YSMGQKQY06</lei>
        <title>Blackrock Technology Opportunities</title>
        <cusip>09258N158</cusip>
        <identifiers>
          <isin value="US09258N1587"/>
          <ticker value="BTEKX"/>
        </identifiers>
        <balance>557040.47100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>35561463.67000000</valUSD>
        <pctVal>1.836706683026</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core MSCI Emerging Markets ETF</name>
        <lei>5493007C24Z3ZDJ0VD06</lei>
        <title>iShares Core MSCI Emerging Markets ETF</title>
        <cusip>46434G103</cusip>
        <identifiers>
          <isin value="US46434G1031"/>
          <ticker value="IEMG"/>
        </identifiers>
        <balance>1090265.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>58841602.05000000</valUSD>
        <pctVal>3.039097735911</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI Emerging Markets ex China ETF</name>
        <lei>549300OO3LEZN53XCB15</lei>
        <title>iShares MSCI Emerging Markets ex China ETF</title>
        <cusip>46434G764</cusip>
        <identifiers>
          <isin value="US46434G7640"/>
          <ticker value="EMXC"/>
        </identifiers>
        <balance>1088901.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>59987556.09000000</valUSD>
        <pctVal>3.098284879141</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>



      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>


    </explntrNotes>
    <signature>
      <ncom:dateSigned>2025-05-27</ncom:dateSigned>
      <ncom:nameOfApplicant>BlackRock Funds II</ncom:nameOfApplicant>
      <ncom:signature>Chuck Pulsfort</ncom:signature>
      <ncom:signerName>Chuck Pulsfort</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
