| Organising body | BFY |
|---|---|
| Founded | 1980 |
| First season | 1980–81 |
| Folded | 1992 |
| Country |  Yugoslavia |
| Divisions | 2 |
| Level on pyramid | 2 |
| Feeder to | FIBA Europe |
| Promotion to | Yugoslav First Federal League |
| Domestic cup(s) | Yugoslav Cup |
The Yugoslav First B Federal Basketball League (Serbo-Croatian: Prva B savezna košarkaška liga) was the second-tier level club basketball league of SFR Yugoslavia. The league's top performing clubs of each season, were promoted up to the top tier level, the Yugoslav First Federal League.