Doc Lavan
- Given Name
- John Leonard
- Nickname(s)
- Doc
- Born
- 10/28/1890 — Grand Rapids, MI, USA
- Died
- 5/29/1952 — Detroit, MI, USA
- Weight
- 151 lbs
- Height
- 5' 8"
- Throws
- R
- Bats
- R
- Team(s)
- Philadelphia Athletics (1913)St. Louis Browns (1913–1917)Washington Senators (1918)St. Louis Cardinals (1919–1924)
- Debut
- 1913-06-22
- Final Game
- 1924-05-04
- Gravesite
- Find-a-Grave