James Ralph "Sully" Montgomery (January 12, 1901 – September 5, 1970) was an American football player and boxer. Montgomery played college football for the Centre Praying Colonels of Centre College in Danville, Kentucky. He came there from the state of Texas. Montgomery played professionally in the National Football League (NFL) for the Chicago Cardinals and Frankford Yellow Jackets. After football, Montgomery was a professional boxer.