1991 Campeonato Brasileiro Série B
| Season | 1991 |
|---|---|
| Champions | Paysandu |
| Promoted | Paysandu Guarani |
| Goals scored | 997 |
| Average goals/game | 2,09 |
| Top goalscorer | Cacaio (Paysandu) |
| Biggest home win | Novorizontino 7-0 Taguatinga |
| Biggest away win | Auto Esporte-PI 1-6 ABC |
The football (soccer) Campeonato Brasileiro Série B 1991, the second level of Brazilian National League, was played from February to May 1991. The competition had 64 clubs and two of them were promoted to Série A. The competition was won by Paysandu.