<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0002147819</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001794546</issuerCik>
      <issuerName>CARLSMED, INC.</issuerName>
      <secFileNumber>001-42756</secFileNumber>
      <issuerAddress>
        <com:street1>1800 ASTON AVENUE</com:street1>
        <com:street2>SUITE 100</com:street2>
        <com:city>CARLSBAD</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>92008</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>858-295-9290</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Bertolini Jeffrey</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>747</noOfUnitsSold>
      <aggregateMarketValue>10749.33</aggregateMarketValue>
      <noOfUnitsOutstanding>27302743</noOfUnitsOutstanding>
      <approxSaleDate>10/05/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/05/2026</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>747</amountOfSecuritiesAcquired>
      <paymentDate>10/05/2026</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>07/07/2026</saleDate>
      <amountOfSecuritiesSold>3379</amountOfSecuritiesSold>
      <grossProceeds>43948.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>07/29/2026</saleDate>
      <amountOfSecuritiesSold>800</amountOfSecuritiesSold>
      <grossProceeds>10401.98</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>07/30/2026</saleDate>
      <amountOfSecuritiesSold>29</amountOfSecuritiesSold>
      <grossProceeds>377.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>08/03/2026</saleDate>
      <amountOfSecuritiesSold>10449</amountOfSecuritiesSold>
      <grossProceeds>137124.32</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>08/04/2026</saleDate>
      <amountOfSecuritiesSold>787</amountOfSecuritiesSold>
      <grossProceeds>10500.31</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>08/31/2026</saleDate>
      <amountOfSecuritiesSold>242</amountOfSecuritiesSold>
      <grossProceeds>4048.66</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>09/03/2026</saleDate>
      <amountOfSecuritiesSold>746</amountOfSecuritiesSold>
      <grossProceeds>12294.08</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jeffrey Bertolini</name>
        <address>
          <com:street1>1800 Aston Ave</com:street1>
          <com:street2>Suite 100</com:street2>
          <com:city>Carlsbad</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>92008</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>09/30/2026</saleDate>
      <amountOfSecuritiesSold>243</amountOfSecuritiesSold>
      <grossProceeds>3399.57</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>10/05/2026</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>03/12/2026</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jeffrey Bertolini</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
