<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
<!--Generated by ThunderDome XBRL - 09:18PM UTC 2025-11-07--><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:currency="http://xbrl.sec.gov/currency/2025" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:ecd="http://xbrl.sec.gov/ecd/2025" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:exch="http://xbrl.sec.gov/exch/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:lyts="http://www.lsi-industries.com/20250930" xmlns:naics="http://xbrl.sec.gov/naics/2025" xmlns:sic="http://xbrl.sec.gov/sic/2025" xmlns:srt="http://fasb.org/srt/2025" xmlns:srt-types="http://fasb.org/srt-types/2025" xmlns:stpr="http://xbrl.sec.gov/stpr/2025" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.lsi-industries.com/20250930">
  <xsd:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/exch/2025" schemaLocation="https://xbrl.sec.gov/exch/2025/exch-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2025" schemaLocation="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd"/>
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/naics/2025" schemaLocation="https://xbrl.sec.gov/naics/2025/naics-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xsd:import namespace="http://xbrl.org/2020/extensible-enumerations-2.0" schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd"/>
  <xsd:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/sic/2025" schemaLocation="https://xbrl.sec.gov/sic/2025/sic-2025.xsd"/>
  <xsd:import namespace="http://fasb.org/us-types/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd"/>
  <xsd:import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="lyts-20250930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="lyts-20250930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="lyts-20250930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="lyts-20250930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="statement-document-and-entity-information" roleURI="http://www.lsi-industries.com/20250930/role/statement-document-and-entity-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-operations-unaudited" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-statements-of-operations-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">001 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-comprehensive-income-unaudited" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-statements-of-comprehensive-income-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">002 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-balance-sheets-current-period-unaudited" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">003 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">004 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-shareholders-equity-unaudited" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-statements-of-shareholders-equity-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">005 - Statement - Condensed Consolidated Statements of Shareholders' Equity (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-shareholders-equity-unaudited-parentheticals" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-statements-of-shareholders-equity-unaudited-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">006 - Statement - Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-cash-flows-unaudited" roleURI="http://www.lsi-industries.com/20250930/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">007 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-interim-condensed-consolidated-financial-statements" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-1-interim-condensed-consolidated-financial-statements">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">008 - Disclosure - Note 1 - Interim Condensed Consolidated Financial Statements</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-summary-of-significant-accounting-policies-" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-2-summary-of-significant-accounting-policies-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">009 - Disclosure - Note 2 - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">010 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-segment-reporting-information" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-segment-reporting-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">011 - Disclosure - Note 4 - Segment Reporting Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-earnings-per-common-share" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-5-earnings-per-common-share">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">012 - Disclosure - Note 5 - Earnings Per Common Share</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-inventories-net" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-6-inventories-net">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">013 - Disclosure - Note 6 - Inventories, Net</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-accrued-expenses" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-7-accrued-expenses">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">014 - Disclosure - Note 7 - Accrued Expenses</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">015 - Disclosure - Note 8 - Goodwill and Other Intangible Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-9-debt">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">016 - Disclosure - Note 9 - Debt</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-cash-dividends" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-10-cash-dividends">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">017 - Disclosure - Note 10 - Cash Dividends</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-equity-compensation" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-11-equity-compensation">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">018 - Disclosure - Note 11 - Equity Compensation</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-supplemental-cash-flow-information" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-12-supplemental-cash-flow-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">019 - Disclosure - Note 12 - Supplemental Cash Flow Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-commitments-and-contingencies" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-13-commitments-and-contingencies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">020 - Disclosure - Note 13 - Commitments and Contingencies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-leases" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-14-leases">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">021 - Disclosure - Note 14 - Leases</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-income-taxes" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-15-income-taxes">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">022 - Disclosure - Note 15 - Income Taxes</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-significant-accounting-policies-policies" roleURI="http://www.lsi-industries.com/20250930/role/statement-significant-accounting-policies-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995445 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-summary-of-significant-accounting-policies-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-2-summary-of-significant-accounting-policies-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995446 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995447 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-segment-reporting-information-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-segment-reporting-information-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995448 - Disclosure - Note 4 - Segment Reporting Information (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-earnings-per-common-share-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-5-earnings-per-common-share-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995449 - Disclosure - Note 5 - Earnings Per Common Share (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-inventories-net-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-6-inventories-net-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995450 - Disclosure - Note 6 - Inventories, Net (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-accrued-expenses-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-7-accrued-expenses-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995451 - Disclosure - Note 7 - Accrued Expenses (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995452 - Disclosure - Note 8 - Goodwill and Other Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-9-debt-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995453 - Disclosure - Note 9 - Debt (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-supplemental-cash-flow-information-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-12-supplemental-cash-flow-information-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995454 - Disclosure - Note 12 - Supplemental Cash Flow Information (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-leases-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-14-leases-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995455 - Disclosure - Note 14 - Leases (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-income-taxes-tables" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-15-income-taxes-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995456 - Disclosure - Note 15 - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995457 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995458 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-assets-acquired-and-liability-assumed-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-assets-acquired-and-liability-assumed-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995459 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings - Schedule of Assets Acquired and Liability Assumed (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-intangible-assets-acquired-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-intangible-assets-acquired-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995460 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings - Schedule of Intangible Assets Acquired (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-acquisition-of-canadas-best-holdings-pro-forma-information-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-3-acquisition-of-canadas-best-holdings-pro-forma-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995461 - Disclosure - Note 3 - Acquisition of Canada's Best Holdings - Pro Forma Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-segment-reporting-information-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-segment-reporting-information-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995462 - Disclosure - Note 4 - Segment Reporting Information (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995463 - Disclosure - Note 4 - Business Segment Information - Summarized Financial Information by Operating Segments (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-segment-reporting-information-identifiable-assets-by-segment-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-segment-reporting-information-identifiable-assets-by-segment-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995464 - Disclosure - Note 4 - Segment Reporting Information - Identifiable Assets by Segment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-segment-reporting-information-intersegment-revenues-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-4-segment-reporting-information-intersegment-revenues-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995465 - Disclosure - Note 4 - Segment Reporting Information - Intersegment Revenues (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-5-earnings-per-common-share-basic-and-diluted-earnings-per-share-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995466 - Disclosure - Note 5 - Earnings per Common Share - Basic and Diluted Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-inventories-net-inventories-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-6-inventories-net-inventories-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995467 - Disclosure - Note 6 - Inventories, Net - Inventories (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-accrued-expenses-accrued-expenses-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-7-accrued-expenses-accrued-expenses-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995468 - Disclosure - Note 7 - Accrued Expenses - Accrued Expenses (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995469 - Disclosure - Note 8 - Goodwill and Other Intangible Assets (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-goodwill-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-goodwill-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995470 - Disclosure - Note 8 - Goodwill and Other Intangible Assets - Goodwill (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995471 - Disclosure - Note 8 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-amortization-expense-of-other-intangible-assets-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-amortization-expense-of-other-intangible-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995472 - Disclosure - Note 8 - Goodwill and Other Intangible Assets - Amortization Expense of Other Intangible Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-goodwill-and-other-intangible-assets-future-amortization-expense-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-8-goodwill-and-other-intangible-assets-future-amortization-expense-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995473 - Disclosure - Note 8 - Goodwill and Other Intangible Assets - Future Amortization Expense (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-9-debt-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995474 - Disclosure - Note 9 - Debt (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt-debt-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-9-debt-debt-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995475 - Disclosure - Note 9 - Debt - Debt (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-cash-dividends-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-10-cash-dividends-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995476 - Disclosure - Note 10 - Cash Dividends (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-equity-compensation-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-11-equity-compensation-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995477 - Disclosure - Note 11 - Equity Compensation (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-supplemental-cash-flow-information-supplemental-cash-flow-information-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-12-supplemental-cash-flow-information-supplemental-cash-flow-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995478 - Disclosure - Note 12 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-commitments-and-contingencies-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-13-commitments-and-contingencies-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995479 - Disclosure - Note 13 - Commitments and Contingencies (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-leases-details-textual" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-14-leases-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995480 - Disclosure - Note 14 - Leases (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-leases-operating-lease-information-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-14-leases-operating-lease-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995481 - Disclosure - Note 14 - Leases - Operating Lease Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-leases-maturities-of-lease-liability-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-14-leases-maturities-of-lease-liability-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995482 - Disclosure - Note 14 - Leases - Maturities of Lease Liability (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-income-taxes-reconciliation-of-income-tax-rate-details" roleURI="http://www.lsi-industries.com/20250930/role/statement-note-15-income-taxes-reconciliation-of-income-tax-rate-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995483 - Disclosure - Note 15 - Income Taxes - Reconciliation of Income Tax Rate (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="lyts_AccruedFreight" name="AccruedFreight" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_AdjustedOperatingIncomeLoss" name="AdjustedOperatingIncomeLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_AmortizationOfAcquiredIntangibleAssets" name="AmortizationOfAcquiredIntangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_AnnualIndicatedPerShareDividendRate" name="AnnualIndicatedPerShareDividendRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="lyts_BusinessAcquisitionProFormaGrossProfit" name="BusinessAcquisitionProFormaGrossProfit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_BusinessCombinationConsiderationTransferredBeforeAdjustmentAndEarnoutPayment" name="BusinessCombinationConsiderationTransferredBeforeAdjustmentAndEarnoutPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_BusinessCombinationConsiderationTransferredWorkingCapitalAdjustmentAndEarnoutPayment" name="BusinessCombinationConsiderationTransferredWorkingCapitalAdjustmentAndEarnoutPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_CBHMember" name="CBHMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_CorporateAndEliminationsMember" name="CorporateAndEliminationsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_DeferredCompensationPlanEquity" name="DeferredCompensationPlanEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="lyts_DisplaySolutionsSegmentMember" name="DisplaySolutionsSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_EmployeeStockOwnershipPlanESOPDiscountPercentage" name="EmployeeStockOwnershipPlanESOPDiscountPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="lyts_EmployeeStockPurchasePlanDiscount" name="EmployeeStockPurchasePlanDiscount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_FinanceLeaseLiabilityToBePaidAfterYearFour" name="FinanceLeaseLiabilityToBePaidAfterYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_IssuanceOfCommonStockAsCompensation" name="IssuanceOfCommonStockAsCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_KeyExecutiveDeferredCompensationMember" name="KeyExecutiveDeferredCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_LEDLightingDigitalSignageElectronicCircuitBoardsMember" name="LEDLightingDigitalSignageElectronicCircuitBoardsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_LSiEmployeeStockPurchasePlanESPPMember" name="LSiEmployeeStockPurchasePlanESPPMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_LedTechnologyFirmwareSoftwareMember" name="LedTechnologyFirmwareSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_LesseeLeasesLiabilityMaturityTableTextBlock" name="LesseeLeasesLiabilityMaturityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_LesseeLeasesRemainingTerm" name="LesseeLeasesRemainingTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_LesseeLeasesTextBlock" name="LesseeLeasesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_LesseeNetLeaseCommitmentsLiabilityUndiscountedExcessAmount" name="LesseeNetLeaseCommitmentsLiabilityUndiscountedExcessAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedAfterYearFive" name="LesseeOperatingSubleasePaymentToBeReceivedAfterYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedRemainderOfFiscalYear" name="LesseeOperatingSubleasePaymentToBeReceivedRemainderOfFiscalYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedYearFour" name="LesseeOperatingSubleasePaymentToBeReceivedYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedYearOne" name="LesseeOperatingSubleasePaymentToBeReceivedYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedYearThree" name="LesseeOperatingSubleasePaymentToBeReceivedYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentToBeReceivedYearTwo" name="LesseeOperatingSubleasePaymentToBeReceivedYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_LesseeOperatingSubleasePaymentsToBeReceived" name="LesseeOperatingSubleasePaymentsToBeReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="lyts_LightingSegmentMember" name="LightingSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_LongtermPerformanceBasedCompensation" name="LongtermPerformanceBasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_NetLeaseCommitments" name="NetLeaseCommitments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="lyts_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_NumberOfMajorCustomers" name="NumberOfMajorCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_O2025Q3DividendsMember" name="O2025Q3DividendsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_OperatingLeasePaymentsOnPrincipal" name="OperatingLeasePaymentsOnPrincipal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_PaymentProceedsRelatedToTaxWithholdingShareBasedPaymentArrangement" name="PaymentProceedsRelatedToTaxWithholdingShareBasedPaymentArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_PolesOtherDisplaySolutionElementsMember" name="PolesOtherDisplaySolutionElementsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_ProjectManagementInstallationServicesShippingAndHandlingMember" name="ProjectManagementInstallationServicesShippingAndHandlingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_PurchaseOfCompanyStockForTheDeferredCompensationPlanWhichIsHeldInARabbiTrustAmount" name="PurchaseOfCompanyStockForTheDeferredCompensationPlanWhichIsHeldInARabbiTrustAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_PurchaseOfCompanyStockForTheDeferredCompensationPlanWhichIsHeldInARabbiTrustShares" name="PurchaseOfCompanyStockForTheDeferredCompensationPlanWhichIsHeldInARabbiTrustShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_QuarterlyIndicatedPerShareDividendRate" name="QuarterlyIndicatedPerShareDividendRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="lyts_StockIssuedDuringPeriodSharesDeferredCompensation" name="StockIssuedDuringPeriodSharesDeferredCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_StockIssuedDuringPeriodValueDeferredCompensation" name="StockIssuedDuringPeriodValueDeferredCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_StockIssuedToFundESPPPlan" name="StockIssuedToFundESPPPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="lyts_StockholdersEquityDeferredStockCompensation" name="StockholdersEquityDeferredStockCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_TermLoanMember" name="TermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_The2019OmnibusAwardPlanMember" name="The2019OmnibusAwardPlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="lyts_TreasuryStockEmployeeStockTrust" name="TreasuryStockEmployeeStockTrust" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="lyts_WeightedAverageNumberOfSharesIssuedNetOfTreasurySharesBasic" name="WeightedAverageNumberOfSharesIssuedNetOfTreasurySharesBasic" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-12-supplemental-cash-flow-information-supplemental-cash-flow-information-details" name="statement-statement-note-12-supplemental-cash-flow-information-supplemental-cash-flow-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-12-supplemental-cash-flow-information-tables" name="statement-statement-note-12-supplemental-cash-flow-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-14-leases-maturities-of-lease-liability-details" name="statement-statement-note-14-leases-maturities-of-lease-liability-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-14-leases-operating-lease-information-details" name="statement-statement-note-14-leases-operating-lease-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-14-leases-operating-lease-information-details74FF8164-F970-4887-923A-5E3D1D7931EF" name="statement-statement-note-14-leases-operating-lease-information-details74FF8164-F970-4887-923A-5E3D1D7931EF" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-14-leases-operating-lease-information-detailsF1BB224C-901F-41C6-8138-E3075866AEE9" name="statement-statement-note-14-leases-operating-lease-information-detailsF1BB224C-901F-41C6-8138-E3075866AEE9" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-14-leases-tables" name="statement-statement-note-14-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-15-income-taxes-reconciliation-of-income-tax-rate-details" name="statement-statement-note-15-income-taxes-reconciliation-of-income-tax-rate-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-15-income-taxes-tables" name="statement-statement-note-15-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details1498472B-1396-49C1-8D29-AED17996824F" name="statement-statement-note-2-summary-of-significant-accounting-policies-disaggregation-of-revenue-details1498472B-1396-49C1-8D29-AED17996824F" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-2-summary-of-significant-accounting-policies-tables" name="statement-statement-note-2-summary-of-significant-accounting-policies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-3-acquisition-of-canadas-best-holdings-pro-forma-information-details" name="statement-statement-note-3-acquisition-of-canadas-best-holdings-pro-forma-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-assets-acquired-and-liability-assumed-details" name="statement-statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-assets-acquired-and-liability-assumed-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-intangible-assets-acquired-details" name="statement-statement-note-3-acquisition-of-canadas-best-holdings-schedule-of-intangible-assets-acquired-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-3-acquisition-of-canadas-best-holdings-tables" name="statement-statement-note-3-acquisition-of-canadas-best-holdings-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details" name="statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details1E7A6FA4-A749-40FA-9CBE-577C0255C21A" name="statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details1E7A6FA4-A749-40FA-9CBE-577C0255C21A" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details63051F66-9D32-4298-90F3-A96FD70821E2" name="statement-statement-note-4-business-segment-information-summarized-financial-information-by-operating-segments-details63051F66-9D32-4298-90F3-A96FD70821E2" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-segment-reporting-information-identifiable-assets-by-segment-details" name="statement-statement-note-4-segment-reporting-information-identifiable-assets-by-segment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-segment-reporting-information-intersegment-revenues-details" name="statement-statement-note-4-segment-reporting-information-intersegment-revenues-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-4-segment-reporting-information-tables" name="statement-statement-note-4-segment-reporting-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-5-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" name="statement-statement-note-5-earnings-per-common-share-basic-and-diluted-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-5-earnings-per-common-share-tables" name="statement-statement-note-5-earnings-per-common-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-6-inventories-net-inventories-details" name="statement-statement-note-6-inventories-net-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-6-inventories-net-tables" name="statement-statement-note-6-inventories-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-7-accrued-expenses-accrued-expenses-details" name="statement-statement-note-7-accrued-expenses-accrued-expenses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-7-accrued-expenses-tables" name="statement-statement-note-7-accrued-expenses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-amortization-expense-of-other-intangible-assets-details" name="statement-statement-note-8-goodwill-and-other-intangible-assets-amortization-expense-of-other-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-future-amortization-expense-details" name="statement-statement-note-8-goodwill-and-other-intangible-assets-future-amortization-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-goodwill-details" name="statement-statement-note-8-goodwill-and-other-intangible-assets-goodwill-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-details" name="statement-statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-detailsAA2C0252-4E2D-4FA4-BA81-B6E93C0EA13B" name="statement-statement-note-8-goodwill-and-other-intangible-assets-other-intangible-assets-detailsAA2C0252-4E2D-4FA4-BA81-B6E93C0EA13B" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-8-goodwill-and-other-intangible-assets-tables" name="statement-statement-note-8-goodwill-and-other-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-9-debt-debt-details" name="statement-statement-note-9-debt-debt-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-note-9-debt-tables" name="statement-statement-note-9-debt-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="lyts_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
