Stephen M. Katz (born August 11, 1953) is an American veterinarian, business owner and politician from Mohegan Lake, New York. He formerly served as a member of the New York State Assembly, representing the 94th Assembly District, including parts of Westchester and Putnam counties. Described by the Putnam Examiner as "bombastic" and known "for his fiery rhetoric," he announced his retirement from the state legislature in January 2016.