Augustus Franklin Ketchum
- Bats Right, Throws Right
- Height 5' 9½", Weight 170 lb.
- Debut August 7, 1922
- Final Game September 28, 1922
- Born March 21, 1897 in Royse City, TX USA
- Died September 6, 1980 in Oklahoma City, OK USA
Gus Ketchum pitched for the Philadelphia Athletics in 1922. The only other major leaguer (through 2007) with the last name Ketchum, Fred Ketchum, also played for the Athletics, albeit 21 years earlier.
Ketchum pitched in one game for the 1923 St. Paul Saints who won 111 games. He was with Toledo in 1924.
He was an auto salesman after his baseball days.