The Ball of Fortune is a 1925 sports mystery novel by the British writer Sydney Horler, a prolific author. As with many other of his novels during the decade it was serialised by the News of the World.
In 1926 it was adapted into a silent film of the same title featuring real-life football Billy Meredith as well as actors Mabel Poulton, Dorothy Boyd and John Longden. Shooting took place at Elland Road, home of Leeds United.