<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/ncen" xmlns:com="http://www.sec.gov/edgar/common">
  <schemaVersion>X0201</schemaVersion>
  <headerData>
    <submissionType>N-CEN</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0001635977</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
        <fileNumber>811-23037</fileNumber>
      </filer>
      <flags>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <investmentCompanyType>N-2</investmentCompanyType>
    </filerInfo>
  </headerData>
  <formData>
    <generalInfo reportEndingPeriod="2019-09-30" isReportPeriodLt12="N"/>
    <registrantInfo>
      <registrantFullName>Tekla World Healthcare Fund</registrantFullName>
      <investmentCompFileNo>811-23037</investmentCompFileNo>
      <registrantCik>0001635977</registrantCik>
      <registrantLei>549300XY2WS5AD8KC081</registrantLei>
      <registrantstreet1>100 FEDERAL STREET,</registrantstreet1>
      <registrantstreet2>19TH FLOOR</registrantstreet2>
      <registrantcity>BOSTON</registrantcity>
      <registrantzipCode>02110</registrantzipCode>
      <registrantstate>US-MA</registrantstate>
      <registrantcountry>US</registrantcountry>
      <registrantphoneNumber>617-772-8500</registrantphoneNumber>
      <websites>
        <website webpage="www.teklacap.com"/>
      </websites>
      <locationBooksRecords>
        <locationBooksRecord>
          <officeName>Tekla Capital Management LLC</officeName>
          <officeAddress1>100 Federal Street</officeAddress1>
          <officeAddress2>19th Floor</officeAddress2>
          <officeCity>Boston</officeCity>
          <officeStateCountry officeCountry="US" officeState="US-MA"/>
          <officeRecordsZipCode>02110</officeRecordsZipCode>
          <officePhone>617-772-8500</officePhone>
          <booksRecordsDesc>Fund Administration Records</booksRecordsDesc>
        </locationBooksRecord>
        <locationBooksRecord>
          <officeName>State Street Bank and Trust Company</officeName>
          <officeAddress1>1 Lincoln Street</officeAddress1>
          <officeCity>Boston</officeCity>
          <officeStateCountry officeCountry="US" officeState="US-MA"/>
          <officeRecordsZipCode>02111</officeRecordsZipCode>
          <officePhone>617-786-3000</officePhone>
          <booksRecordsDesc>Accounting and Custody Records</booksRecordsDesc>
        </locationBooksRecord>
      </locationBooksRecords>
      <isRegistrantFirstFiling>N</isRegistrantFirstFiling>
      <isRegistrantLastFiling>N</isRegistrantLastFiling>
      <registrantFamilyInvComp isRegistrantFamilyInvComp="Y" familyInvCompFullName="TEKLAFUNDS"/>
      <registrantClassificationType>N-2</registrantClassificationType>
      <isSecuritiesActRegistration>N</isSecuritiesActRegistration>
      <directors>
        <director>
          <directorName>Thomas M Kent, CPA</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-06565"/>
            <fileNumberInfo fileNumber="811-04889"/>
            <fileNumberInfo fileNumber="811-22955"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Rakesh K. Jain, Ph.D.</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-04889"/>
            <fileNumberInfo fileNumber="811-06565"/>
            <fileNumberInfo fileNumber="811-22955"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>William S. Reardon, M.B.A.</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-06565"/>
            <fileNumberInfo fileNumber="811-04889"/>
            <fileNumberInfo fileNumber="811-22955"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Daniel R. Omstead, Ph.D.</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>Y</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-22955"/>
            <fileNumberInfo fileNumber="811-06565"/>
            <fileNumberInfo fileNumber="811-04889"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Lucinda H. Stebbins, M.B.A., CPA</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-04889"/>
            <fileNumberInfo fileNumber="811-06565"/>
            <fileNumberInfo fileNumber="811-22955"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Oleg M. Pohotsky, M.B.A., J.D.</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-04889"/>
            <fileNumberInfo fileNumber="811-05399"/>
            <fileNumberInfo fileNumber="811-22955"/>
            <fileNumberInfo fileNumber="811-06565"/>
          </fileNumbers>
        </director>
      </directors>
      <chiefComplianceOfficers>
        <chiefComplianceOfficer>
          <ccoName>Laura Woodward, CPA</ccoName>
          <crdNumber>000000000</crdNumber>
          <ccoStreet1>100 Federal Street</ccoStreet1>
          <ccoStreet2>19th Floor</ccoStreet2>
          <ccoCity>Boston</ccoCity>
          <ccoStateCountry ccoCountry="US" ccoState="US-MA"/>
          <ccoZipCode>02110</ccoZipCode>
          <ccoPhone>XXXXXX</ccoPhone>
          <isCcoChangedSinceLastFiling>N</isCcoChangedSinceLastFiling>
          <ccoEmployers>
            <ccoEmployer ccoEmployerName="N/A" ccoEmployerId="N/A"/>
          </ccoEmployers>
        </chiefComplianceOfficer>
      </chiefComplianceOfficers>
      <securityMatterSeriesInfo isRegistrantSubmittedMatter="Y">
        <seriesInfo seriesName="N/A" seriesId="N/A"/>
      </securityMatterSeriesInfo>
      <isPreviousLegalProceeding>N</isPreviousLegalProceeding>
      <isPreviousProceedingTerminated>N</isPreviousProceedingTerminated>
      <isClaimFiled>N</isClaimFiled>
      <coveredByInsurancePolicy isCoveredByInsurancePolicy="Y" isClaimFiledDuringPeriod="N"/>
      <isFinancialSupportDuringPeriod>N</isFinancialSupportDuringPeriod>
      <releaseNumbers isExemptionFromAct="Y">
        <releaseNumberInfo releaseNumber="IC-28426"/>
        <releaseNumberInfo releaseNumber="IC-31197"/>
      </releaseNumbers>
      <isUnderwriterHiredOrTerminated>N</isUnderwriterHiredOrTerminated>
      <publicAccountants>
        <publicAccountant>
          <publicAccountantName>Deloitte &amp; Touche LLP</publicAccountantName>
          <pcaobNumber>34</pcaobNumber>
          <publicAccountantLei>00000000000000000000</publicAccountantLei>
          <publicAccountantStateCountry publicAccountantCountry="US" publicAccountantState="US-MA"/>
        </publicAccountant>
      </publicAccountants>
      <isPublicAccountantChanged>N</isPublicAccountantChanged>
      <isMaterialWeakness>N</isMaterialWeakness>
      <isOpinionOffered>N</isOpinionOffered>
      <isMaterialChange>N</isMaterialChange>
      <isAccountingPrincipleChange>N</isAccountingPrincipleChange>
      <isPaymentErrorInNetAssetValue>N</isPaymentErrorInNetAssetValue>
      <paymentDividendSeries isPaymentDividend="Y">
        <seriesInfo seriesName="N/A" seriesId="N/A"/>
      </paymentDividendSeries>
    </registrantInfo>
    <managementInvestmentQuestionSeriesInfo>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Tekla World Healthcare Fund</mgmtInvFundName>
        <mgmtInvLei>549300XY2WS5AD8KC081</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <fundType>N/A</fundType>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Tekla Capital Management LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-61018</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000119626</investmentAdviserCrdNo>
            <investmentAdviserLei>254900YSXGYL9SE8C952</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-MA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>Computershare Trust Company, National Association</transferAgentName>
            <transferAgentFileNo>85-11340</transferAgentFileNo>
            <transferAgentLei>2549001YYB62BVMSAO13</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NJ" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Trust Company Canada</custodianName>
            <custodianLei>549300L71XG2CTQ2V827</custodianLei>
            <custodianCountry>CA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company (Edinburgh, GB, Branch)</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianCountry>GB</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company (Boston, MA, US, Branch)</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Eschborn, Hessen, DE, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Budapest, HU, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>HU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Ceskoslovenska obchodni banka, a. s.</custodianName>
            <custodianLei>Q5BP2UEQ48R75BOTCB92</custodianLei>
            <custodianCountry>CZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Clearstream Banking S.A.</custodianName>
            <custodianLei>549300OL514RA0SXJJ44</custodianLei>
            <custodianCountry>LU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <shareholderServicingAgents>
          <shareholderServicingAgent>
            <shareholderServiceAgentName>Computershare Trust Company, National Association</shareholderServiceAgentName>
            <shareholderServiceAgentLei>2549001YYB62BVMSAO13</shareholderServiceAgentLei>
            <shareholderServiceAgentStateCountry shareholderServiceAgentState="US-MA" shareholderServiceAgentCountry="US"/>
            <isShareholderServiceAgentAffiliated>N</isShareholderServiceAgentAffiliated>
            <isShareholderServiceAgentSubshare>N</isShareholderServiceAgentSubshare>
          </shareholderServicingAgent>
        </shareholderServicingAgents>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company (Boston, MA, US, Branch)</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokers>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>13690.71</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>175502.64</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5955.43</grossCommission>
          </broker>
          <broker>
            <brokerName>J.P. Morgan Securities LLC</brokerName>
            <brokerFileNo>8-35008</brokerFileNo>
            <brokerCrdNo>000000079</brokerCrdNo>
            <brokerLei>ZBUT11V806EZRVTWT807</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>23209.22</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7731.81</grossCommission>
          </broker>
          <broker>
            <brokerName>National Financial Services LLC</brokerName>
            <brokerFileNo>8-26740</brokerFileNo>
            <brokerCrdNo>000013041</brokerCrdNo>
            <brokerLei>549300JRHF1MHHWUAW04</brokerLei>
            <brokerStateCountry brokerState="US-MA" brokerCountry="US"/>
            <grossCommission>16680.93</grossCommission>
          </broker>
          <broker>
            <brokerName>Oppenheimer &amp; Co. Inc.</brokerName>
            <brokerFileNo>8-4077</brokerFileNo>
            <brokerCrdNo>000000249</brokerCrdNo>
            <brokerLei>254900VH02JQR2L8XD64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7477.08</grossCommission>
          </broker>
          <broker>
            <brokerName>Mizuho Securities USA LLC</brokerName>
            <brokerFileNo>8-37710</brokerFileNo>
            <brokerCrdNo>000019647</brokerCrdNo>
            <brokerLei>7TK5RJIZDFROZCA6XF66</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10024.47</grossCommission>
          </broker>
          <broker>
            <brokerName>STIFEL NICOLAUS &amp; CO INC.</brokerName>
            <brokerFileNo>8-1447</brokerFileNo>
            <brokerCrdNo>000000793</brokerCrdNo>
            <brokerLei>5WUVMA08EYG4KEUPW589</brokerLei>
            <brokerStateCountry brokerState="US-MO" brokerCountry="US"/>
            <grossCommission>7267.86</grossCommission>
          </broker>
          <broker>
            <brokerName>Pershing LLC</brokerName>
            <brokerFileNo>8-17574</brokerFileNo>
            <brokerCrdNo>000007560</brokerCrdNo>
            <brokerLei>ZI8Q1A8EI8LQFJNM0D94</brokerLei>
            <brokerStateCountry brokerState="US-NJ" brokerCountry="US"/>
            <grossCommission>20769.09</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>303807.55</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
            <principalFileNo>8-26740</principalFileNo>
            <principalCrdNo>000013041</principalCrdNo>
            <principalLei>549300JRHF1MHHWUAW04</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>535500</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Oculis SA</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>00000000000000000000</principalLei>
            <principalCountry>CH</principalCountry>
            <principalTotalPurchaseSale>1145397.92</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Decipher Biosciences, Inc</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>00000000000000000000</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>781985.12</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>64437383.58</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>3207185800</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>IlluminOss Medical, Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>00000000000000000000</principalLei>
            <principalStateCountry principalState="US-RI" principalCountry="US"/>
            <principalTotalPurchaseSale>167872.76</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Rainier Therapeutics, Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>00000000000000000000</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>677706.96</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>3274931646.34</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>418767376</mnthlyAvgNetAssets>
      </managementInvestmentQuestion>
    </managementInvestmentQuestionSeriesInfo>
    <closedEndManagementInvestment>
      <securityRelatedItems>
        <securityRelatedItem>
          <description>Common stock</description>
          <securityClassTitle>Tekla World Healthcare Fund</securityClassTitle>
          <commonStocks>
            <commonStock commonStockExchange="XNYS" commonStockTickerSymbol="THW"/>
          </commonStocks>
        </securityRelatedItem>
      </securityRelatedItems>
      <isRightsOffering>N</isRightsOffering>
      <isSecondaryOffering>N</isSecondaryOffering>
      <repurchaseSecurities isRepurchaseSecurity="Y">
        <repurchaseSecurityType>Common stock</repurchaseSecurityType>
      </repurchaseSecurities>
      <isDefaultLongTermDebt>N</isDefaultLongTermDebt>
      <isDividendsInArrears>N</isDividendsInArrears>
      <isSecuritiesModified>N</isSecuritiesModified>
      <managementFee>1.29</managementFee>
      <netOperatingExpenses>2.53</netOperatingExpenses>
      <marketPricePerShare>13.44000000</marketPricePerShare>
      <netAssetValuePerShare>13.51</netAssetValuePerShare>
    </closedEndManagementInvestment>
    <attachmentsTab>
      <isIPAReportInternalControl>true</isIPAReportInternalControl>
    </attachmentsTab>
    <signature registrantSignedName="Tekla World Healthcare Fund" signedDate="2019-12-11" signature="Laura Woodward" title="VP of Fund Admin"/>
  </formData>
</edgarSubmission>
