William John Rieth, Jr. (June 20, 1916 – October 15, 1999) was an American professional football guard who played four seasons with the Cleveland Rams of the National Football League (NFL).

William John Rieth, Jr. was born on June 20, 1916, in Cleveland, Ohio.

[1] The 1938 Tartans were awarded the Lambert Trophy, distinguishing them as the best college football team in the East.

[6][7] Rieth signed with the Cleveland Rams of the National Football League (NFL) in 1941.

[2] Rieth became a free agent after the 1942 season and later re-signed with the Rams in 1944.