John Patrick Harrington (April 15, 1921 – January 8, 1992) was a professional American football end and defensive end who played two seasons for the Cleveland Browns and Chicago Rockets in the All-America Football Conference. Harrington attended Marquette University and became the football team's captain in 1942. He joined the military in 1944 and played for Air Force teams in 1944 and 1945. He was drafted by the Chicago Cardinals in 1945 but instead signed with the Browns before the team's inaugural season in 1946. Harrington played in one season for the Browns before he was traded to the Rockets in 1947.