Harold Patrick Kelly was an American professional baseball player who played in Major League Baseball (MLB) as an outfielder from 1967 to 1981 with the Minnesota Twins, Kansas City Royals, Chicago White Sox, Baltimore Orioles and the Cleveland Indians. He batted and threw left-handed. His brother, Leroy, was a Pro Football Hall of Fame running back.

Leroy Kelly is an American former professional football player who was a running back for the Cleveland Browns in the National Football League (NFL) from 1964 to 1973. He was inducted into the Pro Football Hall of Fame.