Grant Green (June 6, 1935 – January 31, 1979; some sources erroneously give his year of birth as 1931) was an American jazz guitarist and composer.

Recording prolifically and mainly for Blue Note Records (as both leader and sideman) Green performed in the hard bop, soul jazz, bebop and Latin-tinged idioms 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.