content: <?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>0001967526</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001167379</issuerCik>
        <issuerName>ALCON INC</issuerName>
        <secFileNumber>001-31269</secFileNumber>
        <issuerAddress>
          <com:street1>6201 SOUTH FREEWAY</com:street1>
          <com:city>FORT WORTH</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76134</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>817 293 0450</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Duplan Sergio</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>13523</noOfUnitsSold>
        <aggregateMarketValue>1166448.90</aggregateMarketValue>
        <noOfUnitsOutstanding>493244479</noOfUnitsOutstanding>
        <approxSaleDate>03/01/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/17/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>13523</amountOfSecuritiesAcquired>
        <paymentDate>02/17/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Leon Duplan</name>
          <address>
            <com:street1>Rue Louis-d'Affry 6</com:street1>
            <com:city>Fribourg</com:city>
            <com:stateOrCountry>V8</com:stateOrCountry>
            <com:zipCode>1701</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/29/2024</saleDate>
        <amountOfSecuritiesSold>13377</amountOfSecuritiesSold>
        <grossProceeds>1143097.37</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Leon Duplan and Sergio Duplan are one and the same person.</remarks>
      <noticeSignature>
        <noticeDate>03/01/2024</noticeDate>
        <signature>/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Leon S. Duplan</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001967526
  XXXXXXXX
  LIVE
  0001167379
  ALCON INC
  001-31269
  6201 SOUTH FREEWAY
  FORT WORTH
  TX
  76134
  817 293 0450
  Duplan Sergio
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  13523
  1166448.90
  493244479
  03/01/2024
  NYSE
  Common
  02/17/2024
  Restricted Stock Vesting
  Issuer
  N
  13523
  02/17/2024
  Compensation
  N
  Leon Duplan
  Rue Louis-d'Affry 6
  Fribourg
  V8
  1701
  Common
  02/29/2024
  13377
  1143097.37
  Leon Duplan and Sergio Duplan are one and the same person.
  03/01/2024
  /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Leon S. Duplan