EXHIBIT 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-162279 and 333-160682) and Form S-8 (No. 333-150517 and 333-138398) of Citizens & Northern Corporation and subsidiaries of our report dated March 5, 2021, relating to the consolidated financial statements and the effectiveness of Citizens & Northern Corporation and subsidiaries’ internal control over financial reporting, which appears in this annual report on Form 10-K for the year ended December 31, 2020.

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Baker Tilly US, LLP (formerly known as Baker Tilly Virchow Krause, LLP)

Williamsport, Pennsylvania

March 5, 2021