Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements of Park National Corporation:

Form S-8 No.  333-91178

Form S-8 No.  333-168334

Form S-8 No.  333-188323

Form S-8 No. 333-218006

Form S-8 No. 333-218009

Form S-8 No. 333-219173

Form S-3 No. 333-227943

Form S-4 No. 333-223559

Form S-4 No. 333-228145

of our report dated February 28, 2020, relating to the consolidated financial statements and effectiveness of internal control over financial reporting, appearing in this Annual Report on Form 10-K.

Crowe LLP

Columbus, Ohio

February 28, 2020