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    <link:label id="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_203D2C283A41D5B7AAC387CF2E681F64_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_203D2C283A41D5B7AAC387CF2E681F64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of property, plant, and equipment</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_98B465D04FE65583208287D3333C9E85_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_98B465D04FE65583208287D3333C9E85" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Investments in subsidiaries</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_98B465D04FE65583208287D3333C9E85_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_98B465D04FE65583208287D3333C9E85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Interest in Subsidiaries and Affiliates</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_98B465D04FE65583208287D3333C9E85" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C7BC2F99AAE5A1199DFD87CF2E68AF4B_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C7BC2F99AAE5A1199DFD87CF2E68AF4B" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Acquisition of businesses, net of cash acquired</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C7BC2F99AAE5A1199DFD87CF2E68AF4B_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C7BC2F99AAE5A1199DFD87CF2E68AF4B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C7BC2F99AAE5A1199DFD87CF2E68AF4B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of investment in unconsolidated affiliate</link:label>
    <link:label id="lab_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3_label_en-US" xlink:label="lab_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Divestiture of Businesses and Interests in Affiliates</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3" xlink:to="lab_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_6AE00CF655D5C0E0FE1587CF2E685EE3" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_6A6B4494834A37833F0087CF2E6817FB_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_6A6B4494834A37833F0087CF2E6817FB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other investing activities</link:label>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_6A6B4494834A37833F0087CF2E6817FB_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_6A6B4494834A37833F0087CF2E6817FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for (Proceeds from) Other Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_6A6B4494834A37833F0087CF2E6817FB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used for investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_0E29DE27B57F29F544E987CF2E69A6A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_25E7159A1F99FFB1D0BF87CF2E6978E1_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_25E7159A1F99FFB1D0BF87CF2E6978E1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from financing activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_25E7159A1F99FFB1D0BF87CF2E6978E1_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_25E7159A1F99FFB1D0BF87CF2E6978E1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_25E7159A1F99FFB1D0BF87CF2E6978E1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_B43C301190337408F6E387CF2E69C730_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_B43C301190337408F6E387CF2E69C730" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repayments of long-term debt</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_B43C301190337408F6E387CF2E69C730_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_B43C301190337408F6E387CF2E69C730" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of Long-term Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_B43C301190337408F6E387CF2E69C730" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_AE79CA07150EBEC1F6A787CF2E69D911" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_18F58C4130FD14FD05B487CF2E69A8C4_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_18F58C4130FD14FD05B487CF2E69A8C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from stock option exercises and other</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_18F58C4130FD14FD05B487CF2E69A8C4" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_D5B348F1E95E87A9BA7787CF2E69F9AC_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_D5B348F1E95E87A9BA7787CF2E69F9AC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchases of common stock</link:label>
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    <link:label id="lab_us-gaap_RangeAxis_37F679D791AD2F23D4FFC740AF622E2F_label_en-US" xlink:label="lab_us-gaap_RangeAxis_49ECF5F6064355BBA38622ED33BB7BC3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
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    <link:label id="lab_us-gaap_RangeMember_A3512265CCB252E1CA75C740AF629BFA_label_en-US" xlink:label="lab_us-gaap_RangeMember_AD7F971265485AC7825D7E8994CDC227" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
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    <link:label id="lab_us-gaap_MinimumMember_604D666CC13EDFA7AE81C740AF62699B_label_en-US" xlink:label="lab_us-gaap_MinimumMember_31A230C190565136ACA20954DA767294" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
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    <link:label id="lab_us-gaap_MaximumMember_B68A39FA5C749500F0E1C740AF6200CA_label_en-US" xlink:label="lab_us-gaap_MaximumMember_F81D0FD7D406566FAFCEE1A6CBD96C02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
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    <link:label id="lab_ayi_OtherAccruedAndEmployeeRelatedLiabilitiesCurrent_DFF6DFD0FB34B0B892CBC72963C952B7_terseLabel_en-US" xlink:label="lab_ayi_OtherAccruedAndEmployeeRelatedLiabilitiesCurrent_94047B7E8F0A5649A4F5231B687EF32B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other accrued liabilities</link:label>
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    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_6B71C45F7DD0F0E8EA28C72963C9EEC6_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_9EA8D53EACE05B15B3875A62642A75EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term debt</link:label>
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    <link:label id="lab_ayi_OtherLongTermLiabilitiesAccruedPensionAndSelfInsuranceReservesNoncurrent_6FFAB84485DBE789CEFBC72963CAC09A_verboseLabel_en-US" xlink:label="lab_ayi_OtherLongTermLiabilitiesAccruedPensionAndSelfInsuranceReservesNoncurrent_4C8B88E77B3E5977BF50FCA53E4DC4CE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other long-term liabilities</link:label>
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