﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v6.0" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-01-29T04:44:28-08:00</ReturnTs>
    <TaxPeriodEndDt>2024-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>351524427</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Dahms &amp; Yarian Inc</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>110 S Columbia St</AddressLine1Txt>
        <CityNm>Warsaw</CityNm>
        <StateAbbreviationCd>IN</StateAbbreviationCd>
        <ZIPCd>46580</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>356203552</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>OPTIMIST INTERNATIONAL WARSAW 04555</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>OPTI</BusinessNameControlTxt>
      <USAddress>
        <AddressLine1Txt>PO BOX 344</AddressLine1Txt>
        <CityNm>WARSAW</CityNm>
        <StateAbbreviationCd>IN</StateAbbreviationCd>
        <ZIPCd>46581</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>AUSTIN DONOVAN</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <SignatureDt>2025-01-29</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>Andrew S Swihart CPA</PreparerPersonNm>
      <PTIN>P00627538</PTIN>
      <PhoneNum>5742678141</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="IRS990EZ" referenceDocumentId="IRS990ScheduleO" softwareId="23017517" softwareVersionNum="2023v6.0">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="4">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>138625</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>2206</ContributionsGiftsGrantsEtcAmt>
      <MembershipDuesAmt>60970</MembershipDuesAmt>
      <InvestmentIncomeAmt>918</InvestmentIncomeAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <FundraisingGrossIncomeAmt referenceDocumentId="IRS990ScheduleG">74531</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>23426</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>51105</SpecialEventsNetIncomeLossAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <TotalRevenueAmt>115199</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>38116</GrantsAndSimilarAmountsPaidAmt>
      <OccupancyRentUtltsAndMaintAmt>69319</OccupancyRentUtltsAndMaintAmt>
      <OtherExpensesTotalAmt>16902</OtherExpensesTotalAmt>
      <TotalExpensesAmt>124337</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-9138</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>56677</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>47539</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>73005</BOYAmt>
        <EOYAmt>59674</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>5929</BOYAmt>
        <EOYAmt>2913</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>78934</BOYAmt>
        <EOYAmt>62587</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>22257</BOYAmt>
        <EOYAmt>15048</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>56677</BOYAmt>
        <EOYAmt>47539</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>PROMOTE YOUTH ACTIVITIES</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>PROMOTE YOUTH ACTIVITIES</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>23426</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>23426</TotalProgramServiceExpensesAmt>
      <InfoInScheduleOPartIVInd>X</InfoInScheduleOPartIVInd>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JEFF OWENS</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CHRIS PLACK</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>EVERETT NIFONG</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AUSTIN DONOVAN</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JENNIFER DORMAN</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ART GAKSTATTER</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CHARLIE WAGNER</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>RICK KERLIN</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>HEATHER LARDINO</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANDY SWIHART</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KYRIE' MAIERLE</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DARREN MAIERLE</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SHARI BENYOUSKY</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TOM TEARNEY</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>PAUL FINLEY</PersonNm>
        <TitleTxt>President Elect</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LESTER PIERCE</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CORBIN HOLTSBERRY</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BRITTANY LYON</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANGIE TOM</PersonNm>
        <TitleTxt>BOARD</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>AUSTIN DONOVAN</PersonNm>
        <USAddress>
          <AddressLine1Txt>PO BOX 344</AddressLine1Txt>
          <CityNm>WARSAW</CityNm>
          <StateAbbreviationCd>IN</StateAbbreviationCd>
          <ZIPCd>46581</ZIPCd>
        </USAddress>
        <PhoneNum>5744537947</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
    </IRS990EZ>
    <IRS990ScheduleG documentId="IRS990ScheduleG" softwareId="23017517" softwareVersionNum="2023v6.0">
      <FundraisingEventInformationGrp>
        <Event1Nm>FALL DISPLAYS</Event1Nm>
        <GrossReceiptsEvent1Amt>33522</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>33522</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>4126</OtherDirectExpensesEvent1Amt>
        <Event2Nm>TRIATHLON</Event2Nm>
        <GrossReceiptsEvent2Amt>21455</GrossReceiptsEvent2Amt>
        <GrossRevenueEvent2Amt>21455</GrossRevenueEvent2Amt>
        <OtherDirectExpensesEvent2Amt>11752</OtherDirectExpensesEvent2Amt>
        <OtherEventsTotalCnt>1</OtherEventsTotalCnt>
        <GrossReceiptsOtherEventsAmt>19554</GrossReceiptsOtherEventsAmt>
        <GrossRevenueOtherEventsAmt>19554</GrossRevenueOtherEventsAmt>
        <OthDirectExpnssOtherEventsAmt>7548</OthDirectExpnssOtherEventsAmt>
        <GrossReceiptsTotalAmt>74531</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>74531</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>23426</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>23426</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>51105</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="23017517" softwareVersionNum="2023v6.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.1</FormAndLineReferenceDesc>
        <ExplanationTxt>DUES &amp; SUBSCRIPTIONS $13821</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.2</FormAndLineReferenceDesc>
        <ExplanationTxt>TRAVEL $1615</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.3</FormAndLineReferenceDesc>
        <ExplanationTxt>ADVERTISING $914</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.4</FormAndLineReferenceDesc>
        <ExplanationTxt>POSTAGE $691</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.5</FormAndLineReferenceDesc>
        <ExplanationTxt>SUPPLIES $551</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.6</FormAndLineReferenceDesc>
        <ExplanationTxt>LEGAL AND PROFESSIONAL FEES $53</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.10</FormAndLineReferenceDesc>
        <ExplanationTxt>SERVICE CHARGE $-743</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Assets.1005</FormAndLineReferenceDesc>
        <ExplanationTxt>Accounts Receivable - Beginning $5929 Accounts Receivable - Ending $2913</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Total Liabilities.1001</FormAndLineReferenceDesc>
        <ExplanationTxt>Accounts Payable and Accrued Expenses - Beginning $5472 Accounts Payable and Accrued Expenses - Ending $0</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Total Liabilities.1003</FormAndLineReferenceDesc>
        <ExplanationTxt>Deferred Revenue - Beginning $16785 Deferred Revenue - Ending $15048</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>