John Olerud
- Given Name
- John Garrett
- Nickname(s)
- Mr. Hat On His Head, Big Rude, Johnny O
- Born
- 8/5/1968 — Seattle, WA, USA
- Weight
- 205 lbs
- Height
- 6' 5"
- Throws
- L
- Bats
- L
- Team(s)
- Toronto Blue Jays (1989–1996)New York Mets (1997–1999)Seattle Mariners (2000–2004)New York Yankees (2004)Boston Red Sox (2005)
- Debut
- 1989-09-03
- Final Game
- 2005-10-02