Harold Mabern (Memphis, Tennessee, USA, March 20, 1936 - September 17, 2019) was an American hard bop and soul jazz pianist and songwriter. Early in his career, Mabern played in Chicago with Walter Perkins' MJT + 3 in the late 1950s before moving to New York in 1959. Mabern has worked with Jimmy Forrest, Lionel Hampton, the Jazztet (1961-1962), Donald Byrd, Miles Davis (1963), J. J. Johnson (1963-1965), Lee Morgan (1965), Hank Mobley (1965), Sonny Rollins, Freddie Hubbard, Wes Montgomery, Joe Williams (1966-1967), and Sarah Vaughan.