George Allen Russell (June 23, 1923 – July 27, 2009) was an American jazz pianist, composer, arranger and theorist. He is considered one of the first jazz musicians to contribute to general music theory with a theory of harmony based on jazz rather than European music, in his book Lydian Chromatic Concept of Tonal Organization (1953).

Russell was born in Cincinnati, Ohio to a white father and a black mother, later the adopted only child of a nurse and a chef on the B & O Railroad, Bessie and Joseph Russell. Young Russell sang in the choir of the African Methodist Episcopal Church and listened to the Kentucky Riverboat music of Fate Marable. He made his stage debut at age seven, singing “Moon Over Miami” with Fats Waller.

Surrounded by the music of the black church and the big bands which played on the Ohio Riverboats, and with a father who was a music educator at Oberlin College, he started playing drums with the Boy Scouts and Bugle Corps, receiving a scholarship to Wilberforce University, where he joined the Collegians, a band noted as a breeding ground for great jazz musicians including Ben Webster, Coleman Hawkins, Charles Freeman Lee, Frank Foster, and Benny Carter. Russell served in that band at the same time as another noted jazz composer, Ernie Wilkins. When called up for the draft at the beginning of World War II, he was quickly hospitalized with tuberculosis, where he was taught the fundamentals of music theory by a fellow patient.