Registration No.
                                                                       333-68151
                                                               filed pursuant to
                                                                  Rule 424(b)(3)

                               CINTAS CORPORATION

                          19,348 shares of Common Stock
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     The  shareholders  of Cintas  Corporation  described below are offering and
selling 19,348 shares of Cintas Common Stock.

     The Selling  Shareholders  obtained their shares of Cintas stock on October
31, 1998 in exchange for S G Industries, Inc.

     The Selling  Shareholders  may offer their Cintas stock  through  public or
private  transactions,  on or off the United  States  exchanges,  at  prevailing
market prices, or at privately negotiated prices.

     Cintas  stock is traded on the  Nasdaq  National  Market  under the  symbol
"CTAS." On March 10, 1999, the closing price of one share of Cintas stock on the
Nasdaq National Market was $71-7/8.


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


     Neither the  Securities and Exchange  Commission  nor any state  securities
commission has approved or disapproved these  securities,  or determined if this
Prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

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


                 The date of this Prospectus is March 15, 1999.







                                      - 2 -

                       WHERE YOU CAN FIND MORE INFORMATION

     We file annual,  quarterly and special reports,  proxy statements and other
information with the SEC. You may also read and copy any document we file at the
SEC's  public  reference  Our SEC filings are  available  to the public over the
internet at the SEC's web site at http://www.sec.gov. rooms in Washington, D.C.,
New York, New York and Chicago,  Illinois. Please call the SEC at 1-800-SEC-0330
for further information on the public reference rooms.

     The SEC allows us to  "incorporate  by reference"  the  information we file
with  them.  This  Prospectus  incorporates  important  business  and  financial
information  about  Cintas  which is not  included  in or  delivered  with  this
Prospectus.  The  information  incorporated by reference is an important part of
this  prospectus,  and  information  that  we  file  later  with  the  SEC  will
automatically update and supersede this information. We incorporate by reference
the  Quarterly  Reports on Form 10-Q for the quarters  ended August 31, 1998 and
November  30,  1998,  the Annual  Report on Form 10-K for the year ended May 31,
1998,  the Forms 8-K filed on June 1, 1998 and  January  14, 1999 and any future
filings  made  with the SEC  under  Sections  13(a),  13(c),  14 or 15(d) of the
Securities  Exchange  Act of 1934 until we sell all of the  securities.  We also
incorporate  by reference our  Registration  Statement on Form 8-A, SEC File No.
0-11399, registering the Company's Common Stock under Section 12 of the Exchange
Act,  which  describes  the  class  of  securities   being  registered  by  this
Prospectus.

     You may  obtain a copy of these  filings  without  charge,  by  writing  or
telephoning us at the following address:

                              David T. Jeanmougin
                              Senior Vice President and Secretary
                              Cintas Corporation
                              6800 Cintas Boulevard
                              Cincinnati, Ohio   45262
                              (513) 459-1200

     You  should  rely only on the  information  incorporated  by  reference  or
provided in this prospectus.  We have not authorized  anyone else to provide you
with different  information.  We are not making an offer of these  securities in
any state  where the offer is not  permitted.  You should  not  assume  that the
information in this prospectus is accurate as of any date other than the date on
the front of those  documents.  If you would like to request  documents from us,
please  do so by five  business  days  before  you  have  to make an  investment
decision.

     This Prospectus and the documents  "Incorporated by Reference" as discussed
under "Where You Can Find More Information"  contain forward looking  statements
within the meaning of federal  securities law. Such statements can be identified
by the use of  forward-looking  terminology  such as  "may,"  "will,"  "expect,"
"anticipate,"  "estimate,"  "continue" or other similar words.  These statements
discuss future expectations,  contain projections of results of operations or of
financial  condition  or  state  other "forward-looking" information.   Although
  





                                      - 3 -

management  believes  that the  expectations  reflected  in its  forward-looking
statements are based on reasonable  assumptions,  there are certain factors such
as  general  economic  conditions,  local  real  estate  conditions,  or weather
conditions  that might  cause a  difference  between  actual  results  and those
forward-looking  statements.  When considering such forward-looking  statements,
you should keep in mind the risk factors and other cautionary statements in this
prospectus.


                                   THE COMPANY

     Cintas  is a leader  in the  uniform  rental  and  sales  business  and has
particular expertise in designing,  planning and implementing corporate identity
uniform programs. The Company concentrates on uniform rental services and custom
uniform sales.  Cintas received 73% of its revenues for fiscal 1998 from uniform
rental services and non-uniform rental items, including dust mops, entrance mats
and wiping  cloths.  The balance of the  Company's  revenues  were  derived from
custom  uniform  sales,  the sale of first aid and safety  products,  consumable
cleanroom  supplies and sales of related items. The Company provides uniform and
related rental products and services  through a network of 159 rental  locations
and six cleanroom  facilities and sells uniforms to national  customers  through
distribution  centers located in Cincinnati,  Ohio,  Reno,  Nevada,  Montgomery,
Alabama and Chicago,  Illinois. At its nine garment manufacturing facilities the
Company manufac tures a substantial  portion of the uniform trousers and uniform
shirts  supplied to its  customers.  First aid and safety  products  are sold to
industrial  users either directly from Cintas or Cintas  subsidiaries or through
independent distributors.

     During the past five  years,  Cintas has made  several  acquisitions  which
significantly affected the Company's revenues and net income. These acquisitions
were  completed  using  cash,   seller-financing,   Cintas  Common  Stock  or  a
combination of these methods. The Company intends to continue to expand, through
both  internal  growth,   including  the  establishment  of  operations  in  new
geographic  areas,  and by continuing  its  acquisition  program of both uniform
rental and sale companies and companies that engage in the sale and distribution
of first aid and safety products.

     Cintas was  incorporated  under the laws of the State of Washington in 1986
and is the  successor to a business  begun in 1929.  Its  executive  offices are
located at 6800 Cintas  Boulevard,  Mason,  Ohio 45040;  telephone  number (513)
459-1200.

                              SELLING SHAREHOLDERS

     The 19,348 shares  offered  pursuant to this  Prospectus,  all of which are
being offered for sale hereby,  are offered by Robert S. Sklar and Marsha Sklar.
On October 31, 1998, Cintas consummated the acquisition of S G Industries,  Inc.
Mr. Sklar and Mrs. Sklar  received 9,481 shares and 9,867 shares,  respectively,
of the 19,348  shares of Cintas  Common Stock  described in this  Prospectus  in
exchange for their shares in S G Industries, Inc.

     The Selling  Shareholders  own no other shares of Cintas Common Stock other
than those offered under this Prospectus.  If the Selling  Shareholders sell all
of the shares  offered  under this  Prospectus,  they will not own any shares of
Cintas Common Stock.






                                      - 4 -

     Shares  acquired by gift from the shares owned by the Selling  Shareholders
may also be sold pursuant to the Prospectus by any such donee.  This  Prospectus
may also be used by  transferees,  assignees,  distributees  and pledgees of the
Selling Shareholders.


                                 USE OF PROCEEDS

     Cintas  will not receive any  proceeds  from the shares  being sold in this
offering.

                              PLAN OF DISTRIBUTION

     The  Company  is  registering  the shares  offered  hereby on behalf of the
Selling  Shareholders.  The Company has been advised by the Selling Shareholders
that they may sell or  transfer  all or a portion of the shares  offered  hereby
from time to time to third parties directly or by or through  brokers,  dealers,
agents or underwriters, who may receive compensation in the form of underwriting
discounts,  concessions or commissions from the Selling Shareholders and/or from
purchasers  of the shares for whom they may act as agent.  However,  the Selling
Shareholders  have  advised  the  Company  that they have not  entered  into any
agreements,   understandings   or   arrangements   with  any   underwriters   or
broker-dealers  regarding  the  sale  of  their  securities,  nor  is  there  an
underwriter or coordinating  broker acting in connection with the proposed sales
or transfers of shares by the Selling Shareholders.  Such sales and transfers of
the shares may be effected from time to time in one or more  transactions on the
Nasdaq  National  Market,   in  the   over-the-counter   market,  in  negotiated
transactions or otherwise,  at a fixed price or prices, which may be changed, at
market prices  prevailing at the time of sale, at negotiated  prices, or without
consideration,  through put or call options transactions relating to the shares,
through  short sales of shares or a  combination  of such methods of sale, or by
any other legally available means.

     The term, "Selling Shareholders" includes donees, pledgees and assignees in
interest  selling shares from the named Selling  Shareholders  after the date of
this  prospectus.  Any or all of the shares may be sold or transferred from time
to time by the Selling  Shareholders  by means of (a) a block trade in which the
broker or dealer so  engaged  will  attempt  to sell the shares as agent but may
position  and  resell a portion  of the block as  principal  to  facilitate  the
transaction; (b) purchases by a broker or dealer as principal and resale by such
broker or dealer for its  account  pursuant  to this  Prospectus;  (c)  ordinary
brokerage transactions and transactions in which the broker solicits purchasers;
(d) through the writing of options on the shares;  (e) pledges as  collateral to
secure  loans,  credit  or  other  financing  arrangements  and  any  subsequent
foreclosure, if any, thereunder; (f) gifts, donations and contributions; and (g)
any other  legally  available  means.  The aggregate net proceeds to the Selling
Shareholders  from the sale of the  shares  will be the  purchase  price of such
shares less any commissions.

     In  order  to  comply  with  the  securities  laws of  certain  states,  if
applicable,  the  shares  will  be  sold  in  such  jurisdictions  only  through
registered or licensed  brokers or dealers.  In addition,  in certain states the
shares may not be sold unless they have been registered or qualified for sale in







                                      - 5 -

the applicable  state or an exemption  from the  registration  or  qualification
requirement is available and is complied with.

     The Selling Shareholders and any brokers,  dealers,  agents or underwriters
that  participate  in  the  distribution  of the  shares  may  be  deemed  to be
"underwriters"  within the meaning of Section  2(11) of the  Securities  Act, in
which event any discounts, concessions and commissions received by such brokers,
dealers,  agents or  underwriters  and any  profit on the  resale of the  shares
purchased  by them may be deemed to be  underwriting  commissions  or  discounts
under the Securities Act.  Because the Selling  Shareholders may be deemed to be
"underwriters"  within the meaning of Section 2(11) of the  Securities  Act, the
Selling Shareholders will be subject to the prospectus delivery  requirements of
the  Securities  Act, which may include  delivery  through the facilities of the
Nasdaq  National  Market.  Additionally,  the  anti-manipulative  provisions  of
Regulation  M  promulgated  under  the  Exchange  Act may  apply to sales by the
Selling Shareholders in the market.

     No underwriter,  broker, dealer or agent has been engaged by the Company in
connection with the distribution of the shares.

     Any shares  covered by this  Prospectus  which qualify for sale pursuant to
Rule 144  under  the  Securities  Act may be sold  under  Rule 144  rather  than
pursuant to this Prospectus. There is no assurance that the Selling Shareholders
will sell any of the shares.  The Selling  Shareholders may transfer,  devise or
gift shares by other means not described herein.

     The Company will pay all of the expenses  incident to the  registration  of
the shares, other than underwriting discounts and selling commissions, if any.

     The  Selling  Shareholders  may agree to  indemnify  any  agent,  dealer or
broker-dealer  that  participates  in  transactions  involving  sales of  shares
against certain liabilities, including liabilities under the Securities Act.

     Upon the  Company  being  notified  by the  Selling  Shareholders  that any
material  arrangement has been entered into with a broker-dealer for the sale of
shares  through  a block  trade,  special  offering,  exchange  distribution  or
secondary distribution or a purchase by a broker or dealer, a supplement to this
prospectus  will be  filed,  if  required,  pursuant  to Rule  424(b)  under the
Securities  Act. The supplement  will disclose (i) the name of each such selling
shareholders  and of the  participating  broker-dealer(s),  (ii) the  number  of
shares  involved,  (iii) the price at which such shares  will be sold,  (iv) the
commissions  to be  paid or  discounts  or  concessions  to be  allowed  to such
broker-dealer(s),  where  applicable,  (v) that  such  broker-dealer(s)  did not
conduct any  investigation  to verify the information set out or incorporated by
reference in this prospectus and (vi) other facts material to the transaction. A
supplement  to this  prospectus  will be filed if the Company is notified by the
Selling  Shareholders  that a donee or  pledgee  intends  to sell  more than 500
shares.








                                  LEGAL MATTERS

     The  legality of the Common  Stock  offered  hereby will be passed upon for
Cintas by Keating, Muething & Klekamp, P.L.L., Cincinnati, Ohio, of which Donald
P.  Klekamp,  a Director  of the  Company,  is a  partner.  Members of that firm
beneficially own 307,934 shares of Cintas Common Stock.

                                     EXPERTS

     The consolidated financial statements of Cintas Corporation incorporated by
reference in Cintas  Corporation's Annual Report on Form 10-K for the year ended
May 31, 1998, have been audited by Ernst & Young LLP, independent  auditors,  as
set  forth in  their  report  thereon  incorporated  by  reference  therein  and
incorporated  herein by reference in reliance  upon such report,  given upon the
authority of such firm as experts in accounting and auditing.


                                  MISCELLANEOUS

     No  person  is  authorized  to  give  any   information   or  to  make  any
representations  other than those contained or incorporated by reference in this
Prospectus and, if given or made, such informa tion or representations  must not
be relied upon as having been authorized. This Prospectus does not constitute an
offer to sell or a solicitation of an offer to buy any securities other than the
registered  securities to which it relates or an offer to sell or a solicitation
of an offer to buy such securities in any  jurisdiction to any person to whom it
is unlawful to make such offer or solicitation in such jurisdiction. Neither the
delivery  of  this   Prospectus  nor  any  sale  hereunder   shall,   under  any
circumstances,  create  any  implication  that  there  has been no change in the
affairs  of Cintas  since  the date  hereof  or that the  information  herein is
correct as of any time subsequent to its date.