William George Duzen
- Bats Right, Throws Right
- Height 5' 11", Weight 165 lb.
- Debut September 22, 1890
- Final Game September 27, 1890
- Born February 21, 1870 in Buffalo, NY USA
- Died March 11, 1944 in Buffalo, NY USA
Bill Duzen, from Buffalo, NY, got into a couple of games as a pitcher with the Buffalo entry in the 1890 Players League toward the end of the season. The regular catcher on the team was Connie Mack, while the first baseman was Deacon White, at the time 42 years old, more than twice Duzen's age.