Grant Green (St. Louis, Missouri, June 6, 1935 – New York, January 31, 1979; some sources erroneously give the birth year as 1931) was a jazz guitarist and composer.

Recording prolifically and almost exclusively for Blue Note Records (as both leader and sideman) Green performed well in hard bop, soul jazz, bebop and Latin-tinged settings throughout his career. Critics Michael Erlewine and Ron Wynn write, "A severely underrated player during his lifetime, Grant Green is one of the great unsung heroes of jazz guitar ... Green's playing is immediately recognizable -- perhaps more than any other guitarist." Critic Dave Hunter described his sound as "lithe, loose, slightly bluesy and righteously groovy". He often performed in an organ trio, a small group with an organ and drummer.

Apart from Charlie Christian Green's primary influences were saxophonists, particularly Charlie Parker, and his approach was therefore almost exclusively linear rather than chordal. The simplicity and immediacy of Green's playing, which tended to avoid chromaticism, derived from his early work playing rhythm and blues and, although at his best he achieved a synthesis of this style with bop, he was essentially a blues guitarist and returned almost exclusively to this style in his later career. Green used a Gibson ES-330, then a Gibson L7 with a Gibson McCarty pickguard/pick-up, an Epiphone Emperor (with the same pick-up) and finally had a custom built D'Aquisto. George Benson said he would turn all the bass and treble off the amp, and max the midrange. This way he could get his signature punchy, biting tone.