2009 J.League Division 2
| Season | 2009 | 
|---|---|
| Champions | Vegalta Sendai 1st J2 title 1st D2 title  | 
| Promoted | Vegalta Sendai Cerezo Osaka Shonan Bellmare  | 
| Matches played | 459 | 
| Goals scored | 1,164 (2.54 per match) | 
| Top goalscorer | Shinji Kagawa (27 goals total) | 
| Highest attendance | 22,707 (Round 25, Consadole vs. HollyHock)  | 
| Lowest attendance | 615 (Round 44, Fagiano vs. Tochigi)  | 
| Average attendance | 6,326 | 
← 2008  2010 →   | |
The 2009 J. League Division 2 season was the 38th season of the second-tier club football in Japan and the 11th season since the establishment of J2 League. The season started on March 7 and ended on December 5.
In this season, the number of participating clubs was increased by three, making the total number, eighteen. The clubs played in triple round-robin format. Starting this season, all top three clubs were promoted by default and Pro/Rele Series was eliminated accordingly. There were no relegation to the third-tier Japan Football League.