Exhibit 32.2

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

In connection with the Annual Report of Pinnacle Financial Partners (the
"Company") on Form 10-K for the period ending December 31, 2005, as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Harold R. Carpenter, Chief Financial Officer of the Company, certify, pursuant
to 18 U.S.C. section 1350, as adopted 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 and 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/ Harold R. Carpenter
                                           ------------------------------------
                                           Harold R. Carpenter
                                           Chief Financial Officer
                                           Pinnacle Financial Partners, Inc.
February 24, 2006