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(s) | Copa do Brasil (third stage) |
| Current champions | Santos (1st title) (2024) |
| Most championships | Coritiba Goiás Palmeiras Paysandu América Mineiro Bragantino Botafogo (2 titles each) |
| Broadcaster(s) | ESPN Disney+ RedeTV! Desimpedidos Kwai |
| Website | Official website |
| Current: 2025 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 the Ecuadorian Serie B), and currently officially called Brasileirão Série B Superbet by sponsorship reasons) is the second tier of the Brazilian football league system. Although not having been played annually since its founding in 1971, the competition format has changed almost every season. Since 2006 it has been contested by 20 teams in a double round-robin format 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 group.