Dan O'Leary
- Given Name
- Daniel
- Nickname(s)
- Hustling Dan, Hustlin' Dan
- Born
- 10/22/1856 — Detroit, MI, USA
- Died
- 6/24/1922 — Chicago, IL, USA
- Weight
- 165 lbs
- Height
- 5' 10"
- Bats
- L
- Team(s)
- Providence Grays (1879)Boston Red Caps (1880)Detroit Wolverines (1881)Worcester Ruby Legs (1882)Cincinnati Outlaw Reds (1884)
- Debut
- 1879-09-03
- Final Game
- 1884-08-06