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>0001611870</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000097134</issuerCik>
        <issuerName>TENNANT CO</issuerName>
        <secFileNumber>001-16191</secFileNumber>
        <issuerAddress>
          <com:street1>104000 CLEAN STREET</com:street1>
          <com:city>EDEN PRAIRIE</com:city>
          <com:stateOrCountry>MN</com:stateOrCountry>
          <com:zipCode>55344</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>7635401200</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>McKnight Carol E.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>3455 Peachtree Road NE, Suite 1000</com:street1>
            <com:city>Atlanta</com:city>
            <com:stateOrCountry>GA</com:stateOrCountry>
            <com:zipCode>30326</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>11379</noOfUnitsSold>
        <aggregateMarketValue>973587.24</aggregateMarketValue>
        <noOfUnitsOutstanding>18583434</noOfUnitsOutstanding>
        <approxSaleDate>08/10/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/10/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Exercise of a Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Tennant Company</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>11379</amountOfSecuritiesAcquired>
        <paymentDate>08/10/2023</paymentDate>
        <natureOfPayment>Compensatory Payment</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/23/2023</saleDate>
        <amountOfSecuritiesSold>3832</amountOfSecuritiesSold>
        <grossProceeds>297020.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/24/2023</saleDate>
        <amountOfSecuritiesSold>6930</amountOfSecuritiesSold>
        <grossProceeds>528258.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/25/2023</saleDate>
        <amountOfSecuritiesSold>4445</amountOfSecuritiesSold>
        <grossProceeds>336412.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/26/2023</saleDate>
        <amountOfSecuritiesSold>15999</amountOfSecuritiesSold>
        <grossProceeds>1205500.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/30/2023</saleDate>
        <amountOfSecuritiesSold>3920</amountOfSecuritiesSold>
        <grossProceeds>290301.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/31/2023</saleDate>
        <amountOfSecuritiesSold>4599</amountOfSecuritiesSold>
        <grossProceeds>336767.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>06/01/2023</saleDate>
        <amountOfSecuritiesSold>7107</amountOfSecuritiesSold>
        <grossProceeds>524029.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>06/27/2023</saleDate>
        <amountOfSecuritiesSold>1887</amountOfSecuritiesSold>
        <grossProceeds>151042.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>06/28/2023</saleDate>
        <amountOfSecuritiesSold>300</amountOfSecuritiesSold>
        <grossProceeds>23875.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>06/30/2023</saleDate>
        <amountOfSecuritiesSold>400</amountOfSecuritiesSold>
        <grossProceeds>32800.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/03/2023</saleDate>
        <amountOfSecuritiesSold>1200</amountOfSecuritiesSold>
        <grossProceeds>96418.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/05/2023</saleDate>
        <amountOfSecuritiesSold>800</amountOfSecuritiesSold>
        <grossProceeds>63858.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/06/2023</saleDate>
        <amountOfSecuritiesSold>300</amountOfSecuritiesSold>
        <grossProceeds>23408.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/10/2023</saleDate>
        <amountOfSecuritiesSold>100</amountOfSecuritiesSold>
        <grossProceeds>7875.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/12/2023</saleDate>
        <amountOfSecuritiesSold>400</amountOfSecuritiesSold>
        <grossProceeds>31749.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/17/2023</saleDate>
        <amountOfSecuritiesSold>400</amountOfSecuritiesSold>
        <grossProceeds>32100.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Carol Elizabeth McKnight</name>
          <address>
            <com:street1>10400 Clean Street</com:street1>
            <com:city>Eden Prairie</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55344</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>08/04/2023</saleDate>
        <amountOfSecuritiesSold>1400</amountOfSecuritiesSold>
        <grossProceeds>118372.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/10/2023</noticeDate>
        <signature>Carol Elizabeth McKnight</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 12879}]
text: 144
  0001611870
  XXXXXXXX
  LIVE
  0000097134
  TENNANT CO
  001-16191
  104000 CLEAN STREET
  EDEN PRAIRIE
  MN
  55344
  7635401200
  McKnight Carol E.
  Former Officer
  Common
  Merrill Lynch
  3455 Peachtree Road NE, Suite 1000
  Atlanta
  GA
  30326
  11379
  973587.24
  18583434
  08/10/2023
  NYSE
  Common
  08/10/2023
  Exercise of a Stock Award
  Tennant Company
  N
  11379
  08/10/2023
  Compensatory Payment
  N
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/23/2023
  3832
  297020.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/24/2023
  6930
  528258.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/25/2023
  4445
  336412.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/26/2023
  15999
  1205500.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/30/2023
  3920
  290301.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  05/31/2023
  4599
  336767.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  06/01/2023
  7107
  524029.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  06/27/2023
  1887
  151042.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  06/28/2023
  300
  23875.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  06/30/2023
  400
  32800.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/03/2023
  1200
  96418.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/05/2023
  800
  63858.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/06/2023
  300
  23408.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/10/2023
  100
  7875.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/12/2023
  400
  31749.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  07/17/2023
  400
  32100.00
  Carol Elizabeth McKnight
  10400 Clean Street
  Eden Prairie
  MN
  55344
  Common
  08/04/2023
  1400
  118372.00
  08/10/2023
  Carol Elizabeth McKnight