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        <filer>
          <filerCredentials>
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            <ccc>XXXXXXXX</ccc>
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        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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        <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>St. Louis</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63105</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>314-480-1466</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Scott Sutton</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Regions Bank</name>
          <address>
            <com:street1>PO Box 11007</com:street1>
            <com:city>Birmingham</com:city>
            <com:stateOrCountry>AL</com:stateOrCountry>
            <com:zipCode>35288</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>45000</noOfUnitsSold>
        <aggregateMarketValue>2481750</aggregateMarketValue>
        <noOfUnitsOutstanding>122549597</noOfUnitsOutstanding>
        <approxSaleDate>01/30/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Edward Jones</name>
          <address>
            <com:street1>13180 Coursey Boulevard</com:street1>
            <com:street2>Suite 106</com:street2>
            <com:city>Baton Rouge</com:city>
            <com:stateOrCountry>LA</com:stateOrCountry>
            <com:zipCode>70816</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>30556</noOfUnitsSold>
        <aggregateMarketValue>1685163.4</aggregateMarketValue>
        <noOfUnitsOutstanding>122549597</noOfUnitsOutstanding>
        <approxSaleDate>01/30/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Interactive Brokers LLC</name>
          <address>
            <com:street1>209 South LaSalle Street</com:street1>
            <com:city>Chicago</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60604</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>100000</noOfUnitsSold>
        <aggregateMarketValue>5515000</aggregateMarketValue>
        <noOfUnitsOutstanding>122549597</noOfUnitsOutstanding>
        <approxSaleDate>01/30/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Computershare</name>
          <address>
            <com:street1>144 Fernwood Avenue</com:street1>
            <com:city>Edison</com:city>
            <com:stateOrCountry>NJ</com:stateOrCountry>
            <com:zipCode>8837</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>205534</noOfUnitsSold>
        <aggregateMarketValue>11335200.1</aggregateMarketValue>
        <noOfUnitsOutstanding>122549597</noOfUnitsOutstanding>
        <approxSaleDate>01/30/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>08/27/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Open market purchase</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>45000</amountOfSecuritiesAcquired>
        <paymentDate>01/30/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>08/20/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Open market purchase</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>30556</amountOfSecuritiesAcquired>
        <paymentDate>01/30/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>12/31/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of Performance Share Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>100000</amountOfSecuritiesAcquired>
        <paymentDate>01/30/2024</paymentDate>
        <natureOfPayment>Vesting of Performance Share Award</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>01/30/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Cashless exercise of stock options</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>205534</amountOfSecuritiesAcquired>
        <paymentDate>01/30/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>01/30/2024</noticeDate>
        <signature>/s/ Scott M. Sutton</signature>
      </noticeSignature>
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text: 144
  0001642832
  XXXXXXXX
  LIVE
  0000074303
  Olin Corporation
  001-01070
  190 Carondelet Plaza
  Suite 1530
  St. Louis
  MO
  63105
  314-480-1466
  Scott Sutton
  Officer
  Common Stock
  Regions Bank
  PO Box 11007
  Birmingham
  AL
  35288
  45000
  2481750
  122549597
  01/30/2024
  NYSE
  Common Stock
  Edward Jones
  13180 Coursey Boulevard
  Suite 106
  Baton Rouge
  LA
  70816
  30556
  1685163.4
  122549597
  01/30/2024
  NYSE
  Common Stock
  Interactive Brokers LLC
  209 South LaSalle Street
  Chicago
  IL
  60604
  100000
  5515000
  122549597
  01/30/2024
  NYSE
  Common Stock
  Computershare
  144 Fernwood Avenue
  Edison
  NJ
  8837
  205534
  11335200.1
  122549597
  01/30/2024
  NYSE
  Common Stock
  08/27/2019
  Open market purchase
  Olin Corporation
  N
  45000
  01/30/2024
  Cash
  Common Stock
  08/20/2020
  Open market purchase
  Olin Corporation
  N
  30556
  01/30/2024
  Cash
  Common Stock
  12/31/2023
  Vesting of Performance Share Award
  Olin Corporation
  N
  100000
  01/30/2024
  Vesting of Performance Share Award
  Common Stock
  01/30/2024
  Cashless exercise of stock options
  Olin Corporation
  N
  205534
  01/30/2024
  Compensation
  Y
  01/30/2024
  /s/ Scott M. Sutton