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 before joining the Saskatchewan Roughriders in Canada. He 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.