Grant Green (June 6, 1935 – January 31, 1979) was an influential American jazz guitarist and composer, known for his distinctive single-note playing style and his contributions to the evolution of jazz guitar as a lead instrument. Born in St. Louis, Missouri, Green was raised in a musically inclined family, with early instruction from his father and uncle. He began playing professionally at the age of 13 with gospel groups and later joined jazz and R&B bands.

Green's career took a significant turn when saxophonist Lou Donaldson discovered him in 1959, leading to his introduction to Alfred Lion of Blue Note Records. Green became Blue Note's house guitarist from 1961 to 1965, recording prolifically both as a leader and sideman. His first album as a leader, "Grant's First Stand," was followed by notable recordings like "Idle Moments" and "Solid," which are considered some of his best work.

Despite his talent and prolific output, Green's career was overshadowed by contemporaries like Wes Montgomery and George Benson. He struggled with personal issues, including heroin use, which affected his personal life and career. Nevertheless, Green's music, rooted in the blues and encompassing a variety of styles, gained renewed attention in the 1990s, leading to his recognition as a precursor to the acid jazz movement.

Green's legacy includes over 100 albums, with many recordings released posthumously, and his influence is acknowledged by guitarists such as Carlos Santana and Stevie Ray Vaughan. His work continues to be celebrated and sampled by contemporary artists, highlighting his enduring impact on jazz and popular music.