Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statements (Form S-8, No. 33-99812, No. 33-99814, No. 33-99816, No. 33-99848, No. 333-74634, No. 333-105986, No. 333-105998, No. 333-161988 and No. 333-179933) of Schweitzer-Mauduit International, Inc. of our report dated June 27, 2014 with respect to the financial statements and supplemental schedule of the Schweitzer-Mauduit International, Inc. Retirement Savings Plan, appearing in this Annual Report on Form 11-K of Schweitzer-Mauduit International, Inc. Retirement Savings Plan for the year ended December 31, 2013.

/s/ CohnReznick LLP

Atlanta, Georgia

June 27, 2014