| Country |  Serbia |
|---|---|
| Number of teams | 12–14 (2013–present) 18 (2006–2013) |
| Level on pyramid | 5 |
| Promotion to | Belgrade Zone League |
| Relegation to | Belgrade Second League |
| Domestic cup(s) | Serbian Cup |
| Current champions | PKB Padinska Skela (Group A) Zvezda Konatice (Group B) Zuce (Group C) (2020–21) |
| Current: 2021–22 | |
Belgrade First League (Serbian: Прва београдска лига / Prva beogradska liga) is one of the fifth-tier divisions of the Serbian football league system. It is run by the Football Association of Belgrade.
Since the 2013–14 season, the league is divided into three groups (A, B, and C).