EXHIBIT 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We have issued our report dated March 10, 2023 with respect to the consolidated financial statements included in the Annual Report of Winmark Corporation on Form 10-K for the year ended December 31, 2022. We consent to the incorporation by reference of said report in the Registration Statements of Winmark Corporation on Forms S-8 (File No. 33-85792, File No. 333-120489, File No. 333-143281, File No. 333-172745, File No. 333-197600, File No. 333-197601, File No. 333-221109 and File No. 333-239999).

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/s/ GRANT THORNTON LLP

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Minneapolis, Minnesota

March 10, 2023

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