Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-266084, 333-266104 and 333-276220) and Form S-8 (No. 333-230995, 333-237285, 333-264587 and 333-271238) of HOOKIPA Pharma Inc. of our report dated February 27, 2025 relating to the financial statements, which appears in this Form 10-K.

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Vienna, Austria

February 27, 2025

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PwC Wirtschaftsprüfung GmbH

/s/ Gabor Kruepl

Austrian Certified Public Accountant