| Competition: | Serbian League Belgrade |
| Season: | 2009–10 |
| Winners: | BASK |
| Promoted: | BASK |
| Relegated: | Železničar Beograd |
| Prevseason: | 2008–09 |
| Nextseason: | 2010–11 |
The 2009–10 Serbian League Belgrade was the sixth season of the league under its current title. It began in August 2009 and ended in June 2010.