Charles Irving "Charlie" Leigh Sr. (October 29, 1945 – October 26, 2006) was a National Football League (NFL) running back. He was the first and only NFL player to be signed out of high school. He is best known for backing up Larry Csonka and returning kicks for the Miami Dolphins' back to back Super Bowl champions in the 1972 and 1973 seasons. He also played for the Cleveland Browns and Green Bay Packers. He played a total of six seasons in the NFL.