Robert Barton "Bullet Bob" Westfall (May 5, 1919 – October 23, 1980) was an American football fullback who played for the University of Michigan (1939–1941) and the Detroit Lions (1944–1947). He was a consensus first-team All-American in 1941 and a first-team All-Pro player in 1945. In 1987, Westfall was enshrined in the College Football Hall of Fame.