content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001654938</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000074303</issuerCik>
        <issuerName>Olin Corporation</issuerName>
        <secFileNumber>001-01070</secFileNumber>
        <issuerAddress>
          <com:street1>190 Carondelet Plaza</com:street1>
          <com:street2>Suite 1530</com:street2>
          <com:city>Clayton</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63105</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>314-480-1466</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>James A. Varilek</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Executive Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Computershare</name>
          <address>
            <com:street1>144 Fernwood Avenue</com:street1>
            <com:city>Edison</com:city>
            <com:stateOrCountry>AL</com:stateOrCountry>
            <com:zipCode>08837</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>50000</noOfUnitsSold>
        <aggregateMarketValue>3022000</aggregateMarketValue>
        <noOfUnitsOutstanding>136960837</noOfUnitsOutstanding>
        <approxSaleDate>11/16/2022</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>11/16/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>50000</amountOfSecuritiesAcquired>
        <paymentDate>11/16/2022</paymentDate>
        <natureOfPayment>Cashless Exercise of Stock Option</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>James A. Varilek</name>
          <address>
            <com:street1>190 Carondelet Plaza</com:street1>
            <com:street2>Suite 1530</com:street2>
            <com:city>Clayton</com:city>
            <com:stateOrCountry>MO</com:stateOrCountry>
            <com:zipCode>63105</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>08/17/2022</saleDate>
        <amountOfSecuritiesSold>19418</amountOfSecuritiesSold>
        <grossProceeds>1118088.28</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>James A. Varilek</name>
          <address>
            <com:street1>190 Carondelet Plaza</com:street1>
            <com:street2>Suite 1530</com:street2>
            <com:city>Clayton</com:city>
            <com:stateOrCountry>MO</com:stateOrCountry>
            <com:zipCode>63105</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>08/18/2022</saleDate>
        <amountOfSecuritiesSold>3345</amountOfSecuritiesSold>
        <grossProceeds>193336.1</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>11/15/2022</noticeDate>
        <signature>/s/ James A. Varilek</signature>
      </noticeSignature>
    </formData>
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text: 144
  0001654938
  XXXXXXXX
  LIVE
  0000074303
  Olin Corporation
  001-01070
  190 Carondelet Plaza
  Suite 1530
  Clayton
  MO
  63105
  314-480-1466
  James A. Varilek
  Executive Officer
  Common Stock
  Computershare
  144 Fernwood Avenue
  Edison
  AL
  08837
  50000
  3022000
  136960837
  11/16/2022
  NYSE
  Common Stock
  11/16/2022
  Exercise of Stock Options
  Olin Corporation
  N
  50000
  11/16/2022
  Cashless Exercise of Stock Option
  N
  James A. Varilek
  190 Carondelet Plaza
  Suite 1530
  Clayton
  MO
  63105
  Common Stock
  08/17/2022
  19418
  1118088.28
  James A. Varilek
  190 Carondelet Plaza
  Suite 1530
  Clayton
  MO
  63105
  Common Stock
  08/18/2022
  3345
  193336.1
  11/15/2022
  /s/ James A. Varilek