EXHIBIT 32.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ENACTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of MBT Financial Corp. (the "Company") on
Form 10-K for the period ending December 31, 2007 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), I, H. Douglas
Chaffin, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C.
Section 1350, as enacted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that:

     (1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


/s/ H. Douglas Chaffin
- -------------------------------------
H. Douglas Chaffin
Chief Executive Officer
March 12, 2008


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