Bill Mountjoy
- Given Name
- William Henry
- Nickname(s)
- Medicine Bill
- Born
- 12/11/1858 — London, ON, CAN
- Died
- 5/19/1894 — London, ON, CAN
- Weight
- 150 lbs
- Height
- 5' 6"
- Throws
- R
- Bats
- L
- Team(s)
- Cincinnati Red Stockings (1883–1885)Baltimore Orioles (1885)
- Debut
- 1883-09-29
- Final Game
- 1885-08-18