1990–91 Yugoslav First Basketball League
| 1990–91 Yugoslav First Basketball League | |
|---|---|
| League | Yugoslav First Basketball League |
| Sport | Basketball |
| Regular season | |
| Season champions | POP 84 |
| Top scorer | Arijan Komazec (Zadar) |
| Playoffs | |
| Finals champions | POP 84 |
| Runners-up | Partizan |
The 1990–91 Yugoslav First Basketball League season was the 47th season of the Yugoslav First Basketball League, the highest professional basketball league in SFR Yugoslavia. It was the last edition that featured Croatian teams.