Serbian First League
| Founded | 2005 |
|---|---|
| Country | Serbia |
| Confederation | UEFA |
| Number of clubs | 16 |
| Level on pyramid | 2 |
| Promotion to | Serbian SuperLiga |
| Relegation to | Serbian League |
| Domestic cup(s) | Serbian Cup |
| Current champions | Radnik Surdulica (2nd title) (2024–25) |
| Most championships | Mladost Lučani, Napredak Kruševac, Radnik Surdulica (2 titles) |
| Website | prvaliga.rs |
| Current: 2025–26 Serbian First League | |
The Serbian First League (Serbian: Прва лига Србије / Prva liga Srbije), referred to as the Mozzart Bet First League for sponsorship reasons, is the second tier in professional Serbia's football league. The league was formed in 2005, following a reshuffle of the second tier Serbo-Montenegrin divisions. It is operated by the Football Association of Serbia.