Al Foster (born January 18, 1943) is an American jazz drummer. Foster played with Miles Davis during the 1970s, and was one of the few people to have contact with Davis during his retirement from 1975–1981. Foster also played on Davis's 1981 comeback album The Man with the Horn in 1981. He was the only musician to play in Davis's band both before and after his retirement.

Foster has toured extensively with Herbie Hancock, Sonny Rollins, and Joe Henderson. He is a versatile drummer who has played in musical styles ranging from bebop to free form to jazz/rock.