Basketball League of Serbia
| Founded | 2006 |
|---|---|
| First season | 2006–07 |
| Country | Serbia |
| Confederation | FIBA Europe |
| Number of teams | 22 |
| Level on pyramid | 1st |
| Feeder to | Adriatic Second League |
| Relegation to | Second League |
| Domestic cup(s) | Radivoj Korać Cup Cup of Serbia |
| Current champions | Crvena zvezda (24th title) (2023–24) |
| Most championships | Crvena zvezda (24 titles) |
| CEO | Aleksandar Grujin |
| Commissioner | Darko Jovičić |
| TV partners | RTS Arena Sport |
| Website | kls.rs |
| 2024–25 BLS season | |
The Basketball League of Serbia (Serbian: Кошаркашка лига Србије / Košarkaška liga Srbije), commonly abbreviated as KLS, is a top-tier men's professional basketball league in Serbia. Founded in 2006. It is currently not run by the Basketball Federation of Serbia (KSS).