Stephen Richard Doty (born April 16, 1953) is an American mathematician specializing in algebraic representation theory (especially modular representation theory). He earned a doctorate in mathematics from University of Notre Dame in 1982 under the supervision of with dissertation The Submodule Structure of Weyl Modules for Groups of Type An. After post-doctoral positions at University of Washington and University of Notre Dame, he joined the faculty at Loyola University Chicago in 1987.