John William Butler (September 14, 1918 – April 1963) was a professional football player in the National Football League drafted by the Pittsburgh Steelers in 1942. He would go on to play for both Steelers merged teams ("Steagles" in 1943; "Card-Pitt" in 1944). In 1943 Butler was drafted into the military due to World War II, however he was physically disqualified for duty. He then made his first start with the "Steagles" one day after being ruled 4-F by his draft board for poor eyesight and bad knees. During the 1944 season, Butler was charged, and fined $200, by co-coaches Walt Kiesling and Phil Handler for "indifferent play". He was then put on waivers and was soon claimed by the Brooklyn Tigers. In 1945, he played his final season with the Philadelphia Eagles.