Daff Gammons
- Given Name
- John Ashley
- Nickname(s)
- Daff
- Born
- 3/17/1876 — New Bedford, MA, USA
- Died
- 9/24/1963 — East Greenwich, RI, USA
- Weight
- 170 lbs
- Height
- 5' 11"
- Throws
- R
- Bats
- R
- Team(s)
- Boston Beaneaters (1901)
- Debut
- 1901-04-23
- Final Game
- 1901-06-26
- Gravesite
- Find-a-Grave