Bill Warren
- Given Name
- William Hackney
- Nickname(s)
- Hack
- Born
- 2/11/1884 — Cairo, IL, USA
- Died
- 1/28/1960 — Whiteville, TN, USA
- Weight
- 165 lbs
- Height
- 5' 8"
- Throws
- R
- Bats
- L
- Team(s)
- Indianapolis Hoosiers (1914)Newark Pepper (1915)
- Debut
- 1914-04-30
- Final Game
- 1915-05-23
- Gravesite
- Find-a-Grave