FirstMerit (FMER) 10-Q 2008 Q2 Quarterly report

Exhibit 32.1

SECTION 1350 CERTIFICATIONS

Pursuant to 18 U.S.C. Section 1350, each of the undersigned officers of FirstMerit Corporation (the “Corporation”), hereby certifies that the Corporation’s Form 10-Q to which this certificate is attached (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation. The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

Date: August 4, 2008	By:	/s/ Paul G. Greig
		President and
		Chief Executive Officer
	By:	/s/ Terrence E. Bichsel
		Executive Vice President
		and Chief Financial Officer

A signed original of this written statement has been provided to FirstMerit Corporation and will be retained by it and furnished to the Securities and Exchange Commission or its staff upon request.