FILED UNDER RULE 424(b)(3)
REGISTRATION NO. 333-98163

PROSPECTUS SUPPLEMENT
(To Prospectus dated February 5, 2003)



                                   3M COMPANY

                                 278,979 SHARES

                                  COMMON STOCK

         The prospectus of 3M Company (the "Company"), dated February 5, 2003
relating to the sale of the Company's common stock from time to time by the
selling stockholders is hereby supplemented as set forth below. You should read
this prospectus supplement in conjunction with the prospectus dated February 5,
2003 which is to be delivered with this prospectus supplement.

         The table of selling stockholders set forth on page 8 of the prospectus
is hereby supplemented and amended by the information in the table below.

                                 SHARES BENEFICIALLY      SHARES WHICH MAY
                                 OWNED PRIOR TO THE      BE SOLD PURSUANT TO
    SELLING STOCKHOLDERS             OFFERING(1)          THIS PROSPECTUS(2)
- ----------------------------     -------------------     -------------------
Richard L. Fowler & Joyce E.           114,207                 114,207
Fowler Jt. Ten.

Joyce E. Fowler TTEE
Richard L. Fowler Grantor                6,233                   6,233
Retained Annuity Trust

Richard L. Fowler & Joyce E.            19,050                  19,050
Fowler Charitable Remainder
Unit Trust

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(1) Represents beneficial ownership of less than one percent of 3M's outstanding
    capitalization.

(2) The registration statement of which this prospectus forms a part also shall
    cover any additional shares of our common stock which become issuable in
    connection with the Shares by reason of any stock dividend, stock split,
    recapitalization or other similar transaction effected without the receipt
    of consideration which result in an increase in the number of 3M's
    outstanding shares of common stock.


           THE DATE OF THIS PROSPECTUS SUPPLEMENT IS AUGUST 22, 2003
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