

                                                               EXHIBIT 23.1


                         CONSENT OF INDEPENDENT AUDITORS


We consent to the incorporation by reference in the Registration Statement (Form
S-8)  pertaining  to shares of Cintas Common Stock to be issued under the Unitog
Company 1992 Stock Option Plan, as amended, and Unitog Company 1997 Stock Option
Plan of our  report  dated  July  2,  1998,  with  respect  to the  consolidated
financial  statements  of Cintas  Corporation  incorporated  by reference in its
Annual  Report on Form  10-K for the year  ended  May 31,  1998 and the  related
financial  statement  schedule included  therein,  filed with the Securities and
Exchange Commission.



                                       Ernst & Young LLP

Cincinnati, Ohio
March 22, 1999

