EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statements No. 33-99812, No. 33-99814, No. 33-99816, No. 33-99848, and No. 333-74634 of Schweitzer-Mauduit International, Inc. and subsidiaries on Form S-8 of our report dated January 27, 2003 (January 31, 2003 as to Note 5), appearing in the Annual Report on Form 10-K of Schweitzer-Mauduit International, Inc. and subsidiaries for the year ended December 31, 2002. DELOITTE & TOUCHE LLP Atlanta, Georgia March 6, 2003