As filed with the Securities and Exchange Commission on August 28, 2000.
                                               * Registration No. 333-__________
-------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933


Incorporated                 CINTAS CORPORATION                 I.R.S. Employer
Under the Laws               6800 CINTAS BOULEVARD            Identification No.
of Washington                CINCINNATI, OHIO  45262              31-1188630
                             (513) 459-1200


                    CINTAS CORPORATION 1999 STOCK OPTION PLAN



                              Gary P. Kreider, Esq.
                       Keating, Muething & Klekamp, P.L.L.
                              1400 Provident Tower
                             One East Fourth Street
                             Cincinnati, Ohio 45202
                                 (513) 579-6411
                         (Agent for Service of Process)

                         CALCULATION OF REGISTRATION FEE
--------------------------------------------------------------------------------
                                     Proposed       Proposed
                                     Maximum        Maximum
    Title of           Amount        Offering      Aggregate         Amount of
   Securities          To Be          Price         Offering        Registration
To Be Registered     Registered     Per Share        Price              Fee
----------------     ----------     ----------     -------------    ------------
  Common Stock       9,000,000       $41.41*       $372,690,000*      $98,391**
                       Shares

--------------------------------------------------------------------------------

*   Estimated solely for purposes of calculating registration fee.

**  Registration  fee has been  calculated  pursuant to Rule 457(h) based on the
average of the high and low prices of Cintas  Common  Stock quoted on The Nasdaq
Stock Market on August 23, 2000 of $41.41 per share.

<PAGE>


                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

     The following documents filed by Cintas Corporation with the Securities and
Exchange Commission are incorporated herein by reference and made a part hereof:

     1.   Cintas'  Annual  Report on Form 10-K for the fiscal year ended May 31,
          2000.

     2.   The description of Cintas Common Stock  contained in the  Registration
          Statement on Form 8-A, SEC File No. 0-11399, registering Cintas Common
          Stock under Section 12 of the Securities  Exchange Act of 1934,  which
          describes the class of securities being registered hereunder.

     All reports and other  documents  subsequently  filed by Cintas pursuant to
Section 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, prior
to the filing of a  post-effective  amendment  which  indicates  that all Common
Stock offered has been sold or which deregisters all Common Stock then remaining
unsold,  shall be deemed to be  incorporated  by reference in this  Registration
Statement and to be a part hereof from the date of filing such documents.

Item 4.  Description of Securities

     Not Applicable.

Item 5.  Interests of Named Experts and Counsel

     The  legality of the Common  Stock  offered  hereby will be passed upon for
Cintas by Keating,  Muething & Klekamp,  P.L.L.,  1400 Provident Tower, One East
Fourth  Street,  Cincinnati,  Ohio 45202.  Donald P. Klekamp,  a Director of the
Company,  is a partner  of  Keating,  Muething & Klekamp,  P.L.L.  Attorneys  of
Keating,  Muething & Klekamp,  P.L.L.  participating in matters relating to this
registration statement own 174,488 shares of the Cintas Common Stock.

Item 6.  Indemnification of Directors and Officers

     Washington   Business   Corporation   Act,   Section   23A.08.025,   allows
indemnification  by the Registrant to any person made or threatened to be made a
party to any  proceedings,  other  than a  proceeding  by or in the right of the
Registrant,  by  reason  of the  fact  that  he is or was a  director,  officer,
employee or agent of the Registrant,  against expenses,  including judgments and
fines, if he acted in good faith and in a manner reasonably believed to be in or

<PAGE>



not  opposed  to the best  interests  of the  Registrant  and,  with  respect to
criminal  actions,  in which he had no  reasonable  cause  to  believe  that his
conduct was unlawful.  Similar  provisions apply to actions brought by or in the
right  of the  Registrant,  except  that  no  indemnification  shall  be made in
proceedings  in which the person  shall have been  adjudged  to be liable to the
Corporation.  Indemnifications  are to be made by a majority vote of a quorum of
disinterested  directors or the written opinion of independent counsel or by the
shareholders.

     Article V of the Registrant's By-Laws provides that  indemnification  shall
be extended to any of the persons  described above to the full extent  permitted
by the Washington Business Corporation Act.

Item 7.  Exemption from Registration Claimed

     Not Applicable.

Item 8.  Exhibits

     (All exhibits are filed with this Form S-8 unless otherwise indicated.)

     Exhibit 4.1     Cintas Corporation 1999 Stock Option Plan

     Exhibit 5       Opinion of Keating, Muething & Klekamp, P.L.L

     Exhibit 23.1    Consent of Ernst & Young LLP

     Exhibit 23.2    Consent of Keating, Muething & Klekamp, P.L.L. (included in
                     Exhibit 5)

     Exhibit 24      Power of Attorney (contained on the signature page)

Item 9.  Undertakings

     9.1 The undersigned  Registrant hereby undertakes to file during any period
in which  offers or sales are being made,  a  post-effective  amendment  to this
Registration Statement to include any prospectus required by Section 10(a)(3) of
the  Securities  Act of 1933, to reflect in the  prospectus  any facts or events
arising after the  effective  date of this  Registration  Statement (or the most
recent  post-effective   amendment  thereof)  which,   individually  or  in  the
aggregate,  represent a fundamental  change in the information set forth in this
Registration  Statement and to include any material  information with respect to
the plan of distribution not previously disclosed in the Registration  Statement
or any  material  change  to such  information  in the  Registration  Statement;
provided, however, that (i) and (ii) shall not apply if the information required
to be included in a  post-effective  amendment is contained in periodic  reports
filed  by  the  Registrant  pursuant  to  Section  13 or  Section  15(d)  of the
Securities  Exchange  Act of 1934 that are  incorporated  by  reference  in this
Registration Statement.

<PAGE>


     9.2 The undersigned  Registrant  hereby undertakes that, for the purpose of
determining   any  liability  under  the  Securities  Act  of  1933,  each  such
post-effective  amendment  shall be  deemed to be a new  Registration  Statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     9.3  The   undersigned   Registrant   hereby   undertakes  to  remove  from
registration by means of a post-effective  amendment any of the securities being
registered which remain unsold at the termination of the offering.

     9.4 The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Securities  Exchange  Act of  1934  that is  incorporated  by  reference  in the
Registration  Statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     9.5 Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers and controlling  persons of
the  Registrant  pursuant  to  the  foregoing  provisions,   or  otherwise,  the
Registrant  has been advised that in the opinion of the  Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore,  unenforceable. In the event that a claim for indemnification
against such  liabilities  (other than the payment by the Registrant of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the  successful  defense of any action,  suit, or  proceeding) is asserted by
such director,  officer or controlling  person in connection with the securities
being registered,  the Registrant will, unless in the opinion of its counsel the
matter  has  been  settled  by  controlling  precedent,  submit  to a  court  of
appropriate  jurisdiction  the question  whether such  indemnification  by it is
against  public policy as expressed in the Act and will be governed by the final
adjudication of such issue.




<PAGE>



                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-8 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in Cincinnati, Ohio, on August 28, 2000.


                               CINTAS CORPORATION


                               By:    /s/ Robert J. Kohlhepp
                                   -------------------------
                                    Robert J. Kohlhepp, Chief
                                    Executive Officer

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates  indicated.  The persons whose names are marked with
an asterisk (*) below hereby designate Robert J. Kohlhepp or William C. Gale, or
either  of them,  as  Attorney-In-Fact  to sign all  amendments,  including  any
post-effective amendments, to this Registration Statement.

       Signature                       Capacity                      Date
       ---------                       --------                      ----



--------------------------      Chairman of the Board            August __, 2000
Richard T. Farmer*              of Directors


  /s/ Robert J. Kohlhepp
--------------------------      Chief Executive Officer          August 28, 2000
Robert J. Kohlhepp*             and Director (Principal
                                Executive Officer)


  /s/ Scott D. Farmer
--------------------------      President, Chief Operating       August 28, 2000
Scott D. Farmer*                Officer and Director


--------------------------      Director                         August __, 2000
Gerald V. Dirvin*


  /s/ James J. Gardner
--------------------------      Director                         August 28, 2000
James J. Gardner*


  /s/ Roger L. Howe
--------------------------      Director                         August 28, 2000
Roger L. Howe*


  /s/ John S. Lillard
--------------------------      Director                         August 28, 2000
John S. Lillard*


--------------------------      Director                         August 28, 2000
Donald P. Klekamp*


  /s/ William C. Gale
--------------------------      Vice President of Finance        August 28, 2000
William C. Gale*                (Principal Financial
                                Officer and
                                Principal Accounting
                                Officer)
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{"company-data": {"conformed-name": "CINTAS CORP", "cik": "0000723254", "assigned-sic": "2320", "irs-number": "311188630", "state-of-incorporation": "WA", "fiscal-year-end": "0531"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-44654", "film-number": "711219"}, "business-address": {"street1": "6800 CINTAS BLVD", "street2": "P O BOX 625737", "city": "CINCINNATI", "state": "OH", "zip": "45262", "phone": "5134591200"}, "mail-address": {"street1": "6800 CINTAS BOULEVARD", "street2": "P O BOX 625737", "city": "CINCINNATI", "state": "OH", "zip": "45262"}}
As filed with the Securities and Exchange Commission on August 28, 2000.
                                               * Registration No. 333-__________
-------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

Incorporated                 CINTAS CORPORATION                 I.R.S. Employer
Under the Laws               6800 CINTAS BOULEVARD            Identification No.
of Washington                CINCINNATI, OHIO  45262              31-1188630
                             (513) 459-1200

                    CINTAS CORPORATION 1999 STOCK OPTION PLAN

                              Gary P. Kreider, Esq.
                       Keating, Muething & Klekamp, P.L.L.
                              1400 Provident Tower
                             One East Fourth Street
                             Cincinnati, Ohio 45202
                                 (513) 579-6411
                         (Agent for Service of Process)

                         CALCULATION OF REGISTRATION FEE
--------------------------------------------------------------------------------
                                     Proposed       Proposed
                                     Maximum        Maximum
    Title of           Amount        Offering      Aggregate         Amount of
   Securities          To Be          Price         Offering        Registration
To Be Registered     Registered     Per Share        Price              Fee
----------------     ----------     ----------     -------------    ------------
  Common Stock       9,000,000       $41.41*       $372,690,000*      $98,391**
                       Shares

--------------------------------------------------------------------------------

*   Estimated solely for purposes of calculating registration fee.

**  Registration  fee has been  calculated  pursuant to Rule 457(h) based on the
average of the high and low prices of Cintas  Common  Stock quoted on The Nasdaq
Stock Market on August 23, 2000 of $41.41 per share.
PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

     The following documents filed by Cintas Corporation with the Securities and
Exchange Commission are incorporated herein by reference and made a part hereof:

     1.   Cintas'  Annual  Report on Form 10-K for the fiscal year ended May 31,
          2000.

     2.   The description of Cintas Common Stock  contained in the  Registration
          Statement on Form 8-A, SEC File No. 0-11399, registering Cintas Common
          Stock under Section 12 of the Securities  Exchange Act of 1934,  which
          describes the class of securities being registered hereunder.

     All reports and other  documents  subsequently  filed by Cintas pursuant to
Section 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, prior
to the filing of a  post-effective  amendment  which  indicates  that all Common
Stock offered has been sold or which deregisters all Common Stock then remaining
unsold,  shall be deemed to be  incorporated  by reference in this  Registration
Statement and to be a part hereof from the date of filing such documents.

Item 4.  Description of Securities

     Not Applicable.

Item 5.  Interests of Named Experts and Counsel

     The  legality of the Common  Stock  offered  hereby will be passed upon for
Cintas by Keating,  Muething & Klekamp,  P.L.L.,  1400 Provident Tower, One East
Fourth  Street,  Cincinnati,  Ohio 45202.  Donald P. Klekamp,  a Director of the
Company,  is a partner  of  Keating,  Muething & Klekamp,  P.L.L.  Attorneys  of
Keating,  Muething & Klekamp,  P.L.L.  participating in matters relating to this
registration statement own 174,488 shares of the Cintas Common Stock.

Item 6.  Indemnification of Directors and Officers

     Washington   Business   Corporation   Act,   Section   23A.08.025,   allows
indemnification  by the Registrant to any person made or threatened to be made a
party to any  proceedings,  other  than a  proceeding  by or in the right of the
Registrant,  by  reason  of the  fact  that  he is or was a  director,  officer,
employee or agent of the Registrant,  against expenses,  including judgments and
fines, if he acted in good faith and in a manner reasonably believed to be in or
not  opposed  to the best  interests  of the  Registrant  and,  with  respect to
criminal  actions,  in which he had no  reasonable  cause  to  believe  that his
conduct was unlawful.  Similar  provisions apply to actions brought by or in the
right  of the  Registrant,  except  that  no  indemnification  shall  be made in
proceedings  in which the person  shall have been  adjudged  to be liable to the
Corporation.  Indemnifications  are to be made by a majority vote of a quorum of
disinterested  directors or the written opinion of independent counsel or by the
shareholders.

     Article V of the Registrant's By-Laws provides that  indemnification  shall
be extended to any of the persons  described above to the full extent  permitted
by the Washington Business Corporation Act.

Item 7.  Exemption from Registration Claimed

     Not Applicable.

Item 8.  Exhibits

     (All exhibits are filed with this Form S-8 unless otherwise indicated.)

     Exhibit 4.1     Cintas Corporation 1999 Stock Option Plan

     Exhibit 5       Opinion of Keating, Muething & Klekamp, P.L.L

     Exhibit 23.1    Consent of Ernst & Young LLP

     Exhibit 23.2    Consent of Keating, Muething & Klekamp, P.L.L. (included in
                     Exhibit 5)

     Exhibit 24      Power of Attorney (contained on the signature page)

Item 9.  Undertakings

     9.1 The undersigned  Registrant hereby undertakes to file during any period
in which  offers or sales are being made,  a  post-effective  amendment  to this
Registration Statement to include any prospectus required by Section 10(a)(3) of
the  Securities  Act of 1933, to reflect in the  prospectus  any facts or events
arising after the  effective  date of this  Registration  Statement (or the most
recent  post-effective   amendment  thereof)  which,   individually  or  in  the
aggregate,  represent a fundamental  change in the information set forth in this
Registration  Statement and to include any material  information with respect to
the plan of distribution not previously disclosed in the Registration  Statement
or any  material  change  to such  information  in the  Registration  Statement;
provided, however, that (i) and (ii) shall not apply if the information required
to be included in a  post-effective  amendment is contained in periodic  reports
filed  by  the  Registrant  pursuant  to  Section  13 or  Section  15(d)  of the
Securities  Exchange  Act of 1934 that are  incorporated  by  reference  in this
Registration Statement.
9.2 The undersigned  Registrant  hereby undertakes that, for the purpose of
determining   any  liability  under  the  Securities  Act  of  1933,  each  such
post-effective  amendment  shall be  deemed to be a new  Registration  Statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     9.3  The   undersigned   Registrant   hereby   undertakes  to  remove  from
registration by means of a post-effective  amendment any of the securities being
registered which remain unsold at the termination of the offering.

     9.4 The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Securities  Exchange  Act of  1934  that is  incorporated  by  reference  in the
Registration  Statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     9.5 Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers and controlling  persons of
the  Registrant  pursuant  to  the  foregoing  provisions,   or  otherwise,  the
Registrant  has been advised that in the opinion of the  Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore,  unenforceable. In the event that a claim for indemnification
against such  liabilities  (other than the payment by the Registrant of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the  successful  defense of any action,  suit, or  proceeding) is asserted by
such director,  officer or controlling  person in connection with the securities
being registered,  the Registrant will, unless in the opinion of its counsel the
matter  has  been  settled  by  controlling  precedent,  submit  to a  court  of
appropriate  jurisdiction  the question  whether such  indemnification  by it is
against  public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-8 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in Cincinnati, Ohio, on August 28, 2000.

                               CINTAS CORPORATION

                               By:    /s/ Robert J. Kohlhepp
                                   -------------------------
                                    Robert J. Kohlhepp, Chief
                                    Executive Officer

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates  indicated.  The persons whose names are marked with
an asterisk (*) below hereby designate Robert J. Kohlhepp or William C. Gale, or
either  of them,  as  Attorney-In-Fact  to sign all  amendments,  including  any
post-effective amendments, to this Registration Statement.

       Signature                       Capacity                      Date
       ---------                       --------                      ----

--------------------------      Chairman of the Board            August __, 2000
Richard T. Farmer*              of Directors

  /s/ Robert J. Kohlhepp
--------------------------      Chief Executive Officer          August 28, 2000
Robert J. Kohlhepp*             and Director (Principal
                                Executive Officer)

  /s/ Scott D. Farmer
--------------------------      President, Chief Operating       August 28, 2000
Scott D. Farmer*                Officer and Director

--------------------------      Director                         August __, 2000
Gerald V. Dirvin*

  /s/ James J. Gardner
--------------------------      Director                         August 28, 2000
James J. Gardner*

  /s/ Roger L. Howe
--------------------------      Director                         August 28, 2000
Roger L. Howe*

  /s/ John S. Lillard
--------------------------      Director                         August 28, 2000
John S. Lillard*

--------------------------      Director                         August 28, 2000
Donald P. Klekamp*

  /s/ William C. Gale
--------------------------      Vice President of Finance        August 28, 2000
William C. Gale*                (Principal Financial
                                Officer and
                                Principal Accounting
                                Officer)