William Stein may refer to: William A. Stein (born 1974), computer programmer and mathematician William Howard Stein (1911–1980), biochemist Willie Stein (died 2009), television producer and songwriter Bill Stein (born 1947), American baseball player Bill Stein (American football) (1899–1983), American football offensive lineman See also Randy Stein (William Randolph Stein, 1953–2011), baseball pitcher