Frederick L. Hemke (né Fred LeRoy Hemke Jr.; July 11, 1935 – April 17, 2019) was an American virtuoso classical saxophonist and influential professor of saxophone at Northwestern University. Hemke helped increase the popularity of classical saxophone, particularly among leading American composers, and raised recognition of the classical saxophone in solo, chamber, and major orchestral repertoire throughout the world. Throughout his career, Hemke built American saxophone repertoire through many composers including Muczynski, Creston, Stein, Heiden, and Karlins.