James Sims, Jr. (born February 14, 1983 in Phoenix, Arizona) is an American football running back in the National Football League who is currently a free agent. He played college football at the University of Washington. He was signed by the New York Giants as a rookie free agent on May 13, 2006 and played during the preseason, carrying the ball 33 times for 98 yards. He signed with the full squad on December 19, 2006.