| CJ Magumagu Pro Baseball 2009 | |
|---|---|
 | |
| League | Korea Professional Baseball |
| Sport | Baseball |
| Duration | April 4, 2009 – October 24, 2009 |
| Number of games | 133 per team |
| Number of teams | 8 |
| Regular Season | |
| Season champions | Kia Tigers |
| Season MVP | Kim Sang-Hyun (Kia) |
| League Postseason | |
| Semiplayoff champions | Doosan Bears |
| Semiplayoff runners-up | Lotte Giants |
| Playoff champions | SK Wyverns |
| Playoff runners-up | Doosan Bears |
| Korean Series | |
| Champions | Kia Tigers |
| Runners-up | SK Wyverns |
| Finals MVP | Na Ji-Wan (Kia) |
The 2009 Korea Professional Baseball season was the 28th season in the history of the KBO League. The Kia Tigers won the regular season and the Korean Series.