Campeonato Brasileiro Série B
| Founded | 1971 |
|---|---|
| Country | Brazil |
| Confederation | CONMEBOL |
| Number of clubs | 20 |
| Level on pyramid | 2 |
| Promotion to | Série A |
| Relegation to | Série C |
| Domestic cup | Copa do Brasil (third stage) |
| Current champions | Coritiba (3rd title) (2025) |
| Most championships | Coritiba (3 titles) |
| Broadcaster(s) | ESPN Disney+ RedeTV! Desimpedidos Kwai SportyNet |
| Website | Official website |
| Current: 2026 Campeonato Brasileiro Série B | |
The Campeonato Brasileiro Série B (commonly referred to as the Brasileirão Série B, the Série B or the Brazilian Série B to distinguish it from the Italian Serie B), and currently officially called Brasileirão Série B Superbet for sponsorship reasons) is the second tier of the Brazilian football league system, which is organized by the Brazilian Football Confederation.
The competition was played for the first time in 1971, and for a long time, the competition format was inconsistent, with changes happening frequently. Also, there were years where the competition was not played at all.
Since 2006 it has been contested by 20 teams in a double round-robin format with 38 matches, with the top four teams being promoted to the Campeonato Brasileiro Série A group and the bottom four teams being relegated to the Campeonato Brasileiro Série C.