Cal Lepore (1919-2002) was a line judge and referee in American Professional Football. He officiated in the American Football League from 1966 through 1969, and then in the NFL from 1970 through 1980. He worked the Third AFL-NFL Championship game, won by the New York Jets over the Baltimore Colts, after the 1968 season. After retiring, he was the supervisor of officials in the USFL.
Lepore is credited with promulgating the use of instant replay as an officiating tool, as well as urging the use of coaches' challenges in Professional Football.