Exhibit 23.1 Consent of Independent Auditors We consent to the incorporation by reference in this Annual Report (Form 10-K) of First Defiance Financial Corp. of our report dated January 21, 1999, included in the 1998 Annual Report to Shareholders of First Defiance Financial Corp. We also consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 1993 Stock Incentive Plan and the 1993 Directors' Stock Option Plan of First Defiance Financial Corp. of our report dated January 21, 1999, with respect to the consolidated financial statements of First Defiance Financial Corp. incorporated by reference in the Annual Report (Form 10-K) for the year ended December 31, 1998. /s/Ernst & Young LLP -------------------- Ernst & Young LLP Toledo, Ohio March 24, 1999