As filed with the Securities and Exchange Commission on March 24, 1999.
                         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


                                 UNITOG COMPANY
                        1992 and 1997 STOCK OPTION PLANS



                              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       To Be         Price       Offering          Registration
  Be Registered    Registered     Per Share       Price                Fee
--------------------------------------------------------------------------------
    Common Stock,    191,627*      $65.625**  $12,575,521.875**     $3,496.00***
    No par value*    Shares
--------------------------------------------------------------------------------

*    This  Registration  Statement  is filed for up to 191,627  shares of Common
     Stock  issuable  pursuant to the Unitog  Company 1992 and 1997 Stock Option
     Plans.

**   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 March 23, 1999 of $65.625 per share.


<PAGE>



        This  registration  statement  is filed for the  purpose of  registering
shares of Cintas  Corporation  Common  Stock that are subject to options held by
employees and non-employee directors of Unitog Company that have been assumed by
Cintas  effective as of March 24, 1999 pursuant to Section 8.17 of the Agreement
and Plan of Merger among  Cintas,  Cintas Image  Acquisition  Company and Unitog
dated January 9, 1999. Upon the filing of this  registration  statement,  Cintas
shares become issuable when such Unitog options are exercised.

                                     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, 1998.

          2.   Cintas'  Quarterly  Reports on Form 10-Q for the  quarters  ended
               August 31, 1998, November 30, 1998 and February 28, 1999.

          3.   Cintas' Forms 8-K filed on June 1, 1998 and January 14, 1999.

          4.   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.







<PAGE>



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 Unitog Company 1992 Stock Option Plan (incorporated by
                      reference to Exhibit  10(d) to Unitog's  Annual  Report on
                      Form 10-K for the fiscal year ended January 26, 1992)

        Exhibit       4.2 Amendment Number 1 to Unitog Company 1992 Stock Option
                      Plan (incorporated by reference to Exhibit 10(d) to 
                      Unitog's  Annual Report on Form 10- K for the fiscal year 
                      ended January 30, 1994)
<PAGE>


        Exhibit       4.3 Unitog Company 1997 Stock Option Plan (incorporated by
                      reference  to  Exhibit  A  to  Unitog's  definitive  proxy
                      statement for its 1995 Annual Meeting of Stockholders)

        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 (i) to include any prospectus  required by Section
10(a)(3) of the  Securities  Act of 1933,  (ii) 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 (iii) 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.



<PAGE>




        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 March 24, 1999.


                                          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


/s/ Richard T. Farmer            Chairman of the Board          March 24, 1999
----------------------------     of Directors
Richard T. Farmer*             


/s/ Robert J. Kohlhepp           Chief Executive Officer        March 24, 1999
----------------------------     and Director (Principal
Robert J. Kohlhepp*              Executive Officer)


/s/ Scott D. Farmer              President, Chief Operating     March 24, 1999
----------------------------     Officer and Director
Scott D. Farmer*              


----------------------------     Director                       March 24, 1999
Gerald V. Dirvin*


/s/ James J. Gardner             Director                       March 24, 1999
----------------------------
James J. Gardner*


<PAGE>




/s/ Roger L. Howe                Director                       March 24, 1999
-----------------------------
Roger L. Howe*


------------------------------   Director                       March 24, 1999
John S. Lillard*


------------------------------   Director                       March 24, 1999
Donald P. Klekamp*


/s/ William C. Gale              Vice President of Finance      March 24, 1999
------------------------------   (Principal Financial Officer
William C. Gale*                 and Principal Accounting
                                 Officer)
[{"type": "S-8", "sequence": "1", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 14009}]
{"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": "333-75015", "film-number": "99572066"}, "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 March 24, 1999.
                         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

                                 UNITOG COMPANY
                        1992 and 1997 STOCK OPTION PLANS

                              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       To Be         Price       Offering          Registration
  Be Registered    Registered     Per Share       Price                Fee
--------------------------------------------------------------------------------
    Common Stock,    191,627*      $65.625**  $12,575,521.875**     $3,496.00***
    No par value*    Shares
--------------------------------------------------------------------------------

*    This  Registration  Statement  is filed for up to 191,627  shares of Common
     Stock  issuable  pursuant to the Unitog  Company 1992 and 1997 Stock Option
     Plans.

**   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 March 23, 1999 of $65.625 per share.
This  registration  statement  is filed for the  purpose of  registering
shares of Cintas  Corporation  Common  Stock that are subject to options held by
employees and non-employee directors of Unitog Company that have been assumed by
Cintas  effective as of March 24, 1999 pursuant to Section 8.17 of the Agreement
and Plan of Merger among  Cintas,  Cintas Image  Acquisition  Company and Unitog
dated January 9, 1999. Upon the filing of this  registration  statement,  Cintas
shares become issuable when such Unitog options are exercised.

                                     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, 1998.

          2.   Cintas'  Quarterly  Reports on Form 10-Q for the  quarters  ended
               August 31, 1998, November 30, 1998 and February 28, 1999.

          3.   Cintas' Forms 8-K filed on June 1, 1998 and January 14, 1999.

          4.   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 Unitog Company 1992 Stock Option Plan (incorporated by
                      reference to Exhibit  10(d) to Unitog's  Annual  Report on
                      Form 10-K for the fiscal year ended January 26, 1992)

        Exhibit       4.2 Amendment Number 1 to Unitog Company 1992 Stock Option
                      Plan (incorporated by reference to Exhibit 10(d) to 
                      Unitog's  Annual Report on Form 10- K for the fiscal year 
                      ended January 30, 1994)
Exhibit       4.3 Unitog Company 1997 Stock Option Plan (incorporated by
                      reference  to  Exhibit  A  to  Unitog's  definitive  proxy
                      statement for its 1995 Annual Meeting of Stockholders)

        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 (i) to include any prospectus  required by Section
10(a)(3) of the  Securities  Act of 1933,  (ii) 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 (iii) 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 March 24, 1999.

                                          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

/s/ Richard T. Farmer            Chairman of the Board          March 24, 1999
----------------------------     of Directors
Richard T. Farmer*             

/s/ Robert J. Kohlhepp           Chief Executive Officer        March 24, 1999
----------------------------     and Director (Principal
Robert J. Kohlhepp*              Executive Officer)

/s/ Scott D. Farmer              President, Chief Operating     March 24, 1999
----------------------------     Officer and Director
Scott D. Farmer*              

----------------------------     Director                       March 24, 1999
Gerald V. Dirvin*

/s/ James J. Gardner             Director                       March 24, 1999
----------------------------
James J. Gardner*
/s/ Roger L. Howe                Director                       March 24, 1999
-----------------------------
Roger L. Howe*

------------------------------   Director                       March 24, 1999
John S. Lillard*

------------------------------   Director                       March 24, 1999
Donald P. Klekamp*

/s/ William C. Gale              Vice President of Finance      March 24, 1999
------------------------------   (Principal Financial Officer
William C. Gale*                 and Principal Accounting
                                 Officer)