Fred Richard Riffle (February 2, 1915 – April 29, 1981) was an American professional football player who played as a back for five seasons for the Philadelphia Eagles and Pittsburgh Steelers of the National Football League (NFL).
In his rookie season, Riffle appeared in eleven games, starting four, and finished the season with 227 yards on 65 rushing attempts and one touchdown, which he scored against the Pittsburgh Steelers (then known as the Pittsburgh Pirates) in Philadelphia's 27–7 week two win.
Following a series of ownership transactions known as the "Pennsylvania Polka, Riffle found himself playing for the Eagles inter-state rival.
Against the Washington Redskins in 1941, Riffle caught a touchdown pass from quarterback Al Donelli to tie the game at 7.
[4] Even as the Steelers went through three coaches en route to a 1–9 season, Riffle was selected to his first and only pro bowl.