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Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We consent to the incorporation by reference in the registration statements on Form S-3 (No. 333-250971 and No. 333-250967) and Form S-8 (No. 333-245143, No. 333-239541, No. 333-225056 and No. 333-210217) of ESSA Pharma Inc. of our report dated December 12, 2023, relating to the consolidated financial statements of ESSA Pharma Inc., for the years ended September 30, 2023 and 2022 which appears in the annual report on Form 10-K of ESSA Pharma Inc. dated December 12, 2023.

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“DAVIDSON & COMPANY LLP”

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