Aloysius Tyrone Foster (January 18, 1943 – May 28, 2025) was an American jazz drummer. Foster's professional career began in the mid-1960s, when he played and recorded with hard bop and swing musicians including Blue Mitchell and Illinois Jacquet. Foster played jazz fusion with Miles Davis during the 70s and was one of the few people to have contact with Davis during his retirement from 1975 to 1980. During Davis's retirement, Foster continued to play and record acoustic jazz with Sonny Rollins, Dexter Gordon, McCoy Tyner, Horace Silver, and other band leaders. Foster played on Miles Davis's 1981 comeback album The Man with the Horn, and was the only musician to play in Davis's band both before, and after, his retirement. After leaving Davis's band in the mid-1980s, Foster toured and recorded with Herbie Hancock, Sonny Rollins, Joe Henderson, and many other band leaders, primarily working in acoustic jazz settings. Foster also released several solo albums under his own name, starting with Mixed Roots in 1978.