2009–10 Top League
| 2009–10 Top League | |
|---|---|
Season finale for 2009–10: Toshiba versus Sanyo. | |
| Countries | Japan |
| Date | 4 September 2009 - 9 January 2010 |
| Champions | Toshiba Brave Lupus (5th title) |
| Runners-up | Sanyo Wild Knights |
The 2009–10 Top League was the seventh season of Japan's domestic rugby union competition, the Top League. The Toshiba Brave Lupus defeated Sanyo Wild Knights by 6–0 in the final of the Microsoft Cup to claim their fifth Top League championship.
The Top League is a semi-professional competition which is at the top of the national league system in Japan, with promotion and relegation between the next level down.