Mac Curtis Speedie (January 12, 1920 – March 5, 1993) was an American football end who played for the Cleveland Browns in the All-America Football Conference (AAFC) and National Football League (NFL) for seven years, and later served for two years as head coach of the American Football League's Denver Broncos. A tall and quick runner whose awkward gait helped him deceive defenders and get open, Speedie led his league in receptions four times during his career and was selected as a first-team All-Pro six times. His career average of 800 yards per season was not surpassed until two decades after his retirement, and his per-game average of 50 yards went unequalled for 20 years after he left the game.