John Wallace Leavenworth (July 20, 1881 – August 8, 1962) was an American football player and coach. He served as the head football coach at the University of Alabama in 1905, compiling a record of 6–4. Leavenworth played college football as a halfback at Yale University. He died on August 8, 1962, at Meriden Hospital in Meriden, Connecticut.