| 2009 NPB season | |
| League: | Nippon Professional Baseball |
| Sport: | Baseball |
| Duration: | April 3 - November 7 |
| Season2: | Central League Pennant |
| League Champs2: | Yomiuri Giants |
| Second Place2: | Chunichi Dragons |
| Mvp2: | Alex Ramírez (Yomiuri) |
| Mvp Link2: | Nippon Professional Baseball Most Valuable Player Award |
| Season3: | Pacific League Pennant |
| League Champs3: | Hokkaido Nippon-Ham Fighters |
| Second Place3: | Tohoku Rakuten Golden Eagles |
| Mvp3: | Yu Darvish (Nippon Ham) |
| Mvp Link3: | Nippon Professional Baseball Most Valuable Player Award |
| Playoffs: | Climax Series |
| Playoffs Link: | Climax Series |
| Conf1: | CL |
| Conf1 Link: | 2009 Central League Climax Series |
| Conf1 Champ: | Yomiuri Giants |
| Conf1 Runner-Up: | Chunichi Dragons |
| Conf2: | PL |
| Conf2 Link: | 2009 Pacific League Climax Series |
| Conf2 Champ: | Hokkaido Nippon-Ham Fighters |
| Conf2 Runner-Up: | Tohoku Rakuten Golden Eagles |
| Finals: | Japan Series |
| Finals Link: | 2009 Japan Series |
| Finals Champ: | Yomiuri Giants |
| Finals Runner-Up: | Hokkaido Nippon-Ham Fighters |
| Finals Mvp: | Shinnosuke Abe (Yomiuri) |
| Finals Mvp Link: | Japan Series Most Valuable Player Award |
| Seasonslist: | List of Nippon Professional Baseball seasons |
| Seasonslistnames: | NPB |
| Prevseason Link: | 2008 Nippon Professional Baseball season |
| Prevseason Year: | 2008 |
| Nextseason Link: | 2010 Nippon Professional Baseball season |
| Nextseason Year: | 2010 |
The 2009 Nippon Professional Baseball season is the 60th season since the NPB was reorganized in
See main article: 2009 Central League Climax Series and 2009 Pacific League Climax Series. Note: All of the games that are played in the first two rounds of the Climax Series are held at the higher seed's home stadium. The team with the higher regular-season standing also advances if the round ends in a tie.
Chunichi Dragons win the series, 2-1
| Game | Score | Date | Location | Attendance | |
|---|---|---|---|---|---|
| 1 | Chunichi Dragons 2 - 3 Tokyo Yakult Swallows | October 17 | Nagoya Dome | 38,391 | |
| 2 | Chunichi Dragons 3 - 2 Tokyo Yakult Swallows | October 18 | Nagoya Dome | 38,171 | |
| 3 | Chunichi Dragons 7 - 4 Tokyo Yakult Swallows | October 19 | Nagoya Dome | 32,897 |
Yomiuri Giants have one-win advantage
| Game | Score | Date | Location | Attendance | |
|---|---|---|---|---|---|
| 1 | Yomiuri Giants 2 - 7 Chunichi Dragons | October 21 | Tokyo Dome | 41,259 | |
| 2 | Yomiuri Giants 6 - 4 Chunichi Dragons | October 22 | Tokyo Dome | 40,452 | |
| 3 | Yomiuri Giants 5 - 4 Chunichi Dragons | October 23 | Tokyo Dome | 45,409 | |
| 4 | Yomiuri Giants 8 - 2 Chunichi Dragons | October 24 | Tokyo Dome | 46,535 |
Tohoku Rakuten Golden Eagles win the series, 2-0
| Game | Score | Date | Location | Attendance |
|---|---|---|---|---|
| 1 | Tohoku Rakuten Golden Eagles 11 - 4 Fukuoka SoftBank Hawks | October 16 | Miyagi Baseball Stadium | 21,303 |
| 2 | Tohoku Rakuten Golden Eagles 4 - 1 Fukuoka SoftBank Hawks | October 17 | Miyagi Baseball Stadium | 21,388 |
Hokkaido Nippon-Ham Fighters have one-win advantage
| Game | Score | Date | Location | Attendance | |
|---|---|---|---|---|---|
| 1 | Hokkaido Nippon-Ham Fighters 9 - 8 Tohoku Rakuten Golden Eagles | October 21 | Sapporo Dome | 38,235 | |
| 2 | Hokkaido Nippon-Ham Fighters 3 - 1 Tohoku Rakuten Golden Eagles | October 22 | Sapporo Dome | 32,713 | |
| 3 | Hokkaido Nippon-Ham Fighters 2 - 3 Tohoku Rakuten Golden Eagles | October 23 | Sapporo Dome | 42,328 | |
| 4 | Hokkaido Nippon-Ham Fighters 9 - 4 Tohoku Rakuten Golden Eagles | October 24 | Sapporo Dome | 42,328 |
Hokkaido Nippon-Ham Fighters win the series, 4-1
See main article: 2009 Japan Series.