Leo Parker (April 18, 1925 – February 11, 1962) was an American jazz musician, who primarily played baritone saxophone. Born in Washington, D.C., Parker studied alto saxophone in high school and played this instrument on a recording with Coleman Hawkins in 1944. Parker switched to baritone saxophone in 1944 when he joined Billy Eckstine‘s bebop band, playing there until 1946. In 1945, he was a member of the “Unholy Four” of saxophonists, with Dexter Gordon, Sonny Stitt and Gene Ammons.