Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in the Registration Statement (Form S-3 No. 333-106926) and related Prospectus of Cintas Corporation (the Company) and to the incorporation by reference therein of our reports dated July 30, 2010, with respect to the consolidated financial statements and schedule of the Company, and the effectiveness of internal control over financial reporting of the Company, included in its Annual Report (Form 10-K) for the year ended May 31, 2010, filed with the Securities and Exchange Commission.
| /s/ Ernst & Young LLP |
Cincinnati, Ohio
May 18, 2011