Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-266466) and Form S-8 (No. 333-265437) of Mercer International Inc. of our report dated February 15, 2024 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.
/s/ PricewaterhouseCoopers LLP
Chartered Professional Accountants
Vancouver, Canada
February 15, 2024