Voting for the 2009 American League Cy Young Award by the Baseball Writers' Association of America (first-place votes in parentheses):
Zack Greinke, Royals (25) — 134
Felix Hernandez, Mariners (2) — 80
Justin Verlander, Tigers (1) — 14
CC Sabathia, Yankees — 13
Roy Halladay, Halladay — 11
- Greinke, 26, won the award despite winning just 16 games, the lowest total for any Cy Young Award-winning pitcher. No AL starter had won the award without winning at least 18 games.
- Greinke had a 2.16 ERA, best in the AL and the lowest for an AL Cy Young winner since 2000.
- It was the fourth time a Royals pitcher has won the award. Bret Saberhagen won twice (1985, 1989) and David Cone won in 1994.