# 1991 Campeonato Gaúcho

The 71st season of the Campeonato Gaúcho kicked off on August 11, 1991 and ended in December 15, 1991. Twenty teams participated. Internacional beat holders Grêmio in the finals and won their 30th title. No teams were relegated.

## Participating teams

| Club | Stadium | Home location | Previous season |
| Aimoré | Cristo-Rei | São Leopoldo | 14th |
| Brasil | Bento Freitas | Pelotas | 14th (Second level) |
| Caxias | Centenário | Caxias do Sul | 2nd |
| Dínamo | Carlos Denardin | Santa Rosa | 9th (Second level) |
| Esportivo | Montanha | Bento Gonçalves | 9th |
| Glória | Altos da Glória | Vacaria | 10th |
| Grêmio | Olímpico | Porto Alegre | 1st |
| Guarani | Edmundo Feix | Venâncio Aires | 2nd (Second level) |
| Guarany | Taba Índia | Cruz Alta | 7th |
| Internacional | Beira-Rio | Porto Alegre | 3rd |
| Juventude | Alfredo Jaconi | Caxias do Sul | 4th |
| Lajeadense | Florestal | Lajeado | 11th |
| Novo Hamburgo | Santa Rosa | Novo Hamburgo | 13th |
| Passo Fundo | Vermelhão da Serra | Passo Fundo | 12th |
| Pelotas | Boca do Lobo | Pelotas | 6th |
| São Luiz | 19 de Outubro | Ijuí | 1st (Second level) |
| São Paulo | Aldo Dapuzzo | Rio Grande | 11th (Second level) |
| Santa Cruz | Plátanos | Santa Cruz do Sul | 8th |
| Ta-Guá | Plácido Scussel | Getúlio Vargas | 24th (Second level) |
| Ypiranga | Colosso da Lagoa | Erechim | 5th |

## System

The championship would have three stages:
* First phase: The twenty teams were divided into two groups of ten, and played each other in a single round-robin system. The two best teams in each group and the four best teams with the best record qualified to the Second phase.
* Second phase: The eight remaining teams were divided into two groups of four, in which each team played the teams of its own group in a double round-robin system. The best teams in each group qualified to the Finals.
* Finals: The group winners played each other in three matches to define the champions.

## Championship
### First phase
#### Group 1

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Internacional | 19 | 11 | 6 | 2 | 36 | 14 | +22 | 28 | Qualified |
| 2 | São Luiz | 19 | 6 | 10 | 3 | 19 | 16 | +3 | 22 | Qualified |
| 3 | Pelotas | 19 | 6 | 9 | 4 | 25 | 16 | +9 | 21 | |
| 4 | Ypiranga de Erechim | 19 | 6 | 9 | 4 | 21 | 16 | +5 | 21 | |
| 5 | Dínamo | 19 | 6 | 8 | 5 | 19 | 14 | +5 | 20 | |
| 6 | Esportivo | 19 | 6 | 8 | 5 | 17 | 16 | +1 | 20 | |
| 7 | Caxias | 19 | 4 | 8 | 7 | 17 | 24 | −7 | 16 | |
| 8 | Santa Cruz | 19 | 4 | 5 | 10 | 16 | 24 | −8 | 13 | |
| 9 | São Paulo | 19 | 3 | 5 | 11 | 14 | 31 | −17 | 11 | |
| 10 | Aimoré | 19 | 1 | 7 | 11 | 7 | 19 | −12 | 9 | |

#### Group 2

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Guarani de Venâncio Aires | 19 | 9 | 10 | 0 | 20 | 9 | +11 | 28 | Qualified |
| 2 | Juventude | 19 | 8 | 9 | 2 | 18 | 8 | +10 | 25 | Qualified |
| 3 | Lajeadense | 19 | 10 | 4 | 5 | 25 | 22 | +3 | 24 | Qualified with the best season record |
| 4 | Grêmio | 19 | 7 | 10 | 2 | 25 | 16 | +9 | 24 | Qualified with the best season record |
| 5 | Brasil de Pelotas | 19 | 8 | 6 | 5 | 21 | 19 | +2 | 22 | Qualified with the best season record |
| 6 | Glória | 19 | 6 | 9 | 4 | 20 | 17 | +3 | 21 | Qualified with the best season record |
| 7 | Novo Hamburgo | 19 | 3 | 10 | 6 | 17 | 22 | −5 | 16 | |
| 8 | Passo Fundo | 19 | 4 | 6 | 9 | 24 | 36 | −12 | 14 | |
| 9 | Ta-Guá | 19 | 2 | 10 | 7 | 11 | 23 | −12 | 14 | |
| 10 | Guarany de Cruz Alta | 19 | 3 | 5 | 11 | 16 | 26 | −10 | 11 | |

### Second phase
#### Group 1

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Internacional | 6 | 4 | 2 | 0 | 9 | 4 | +5 | 10 | Qualified |
| 2 | Juventude | 6 | 4 | 1 | 1 | 8 | 4 | +4 | 9 | |
| 3 | Brasil de Pelotas | 6 | 1 | 2 | 3 | 6 | 5 | +1 | 4 | |
| 4 | Guarani de Venâncio Aires | 6 | 0 | 1 | 5 | 3 | 13 | −10 | 1 | |

#### Group 2

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Grêmio | 6 | 4 | 1 | 1 | 13 | 5 | +8 | 9 | Qualified |
| 2 | Lajeadense | 6 | 3 | 0 | 3 | 8 | 11 | −3 | 6 | |
| 3 | Glória | 6 | 1 | 3 | 2 | 6 | 6 | 0 | 5 | |
| 4 | São Luiz | 6 | 1 | 2 | 3 | 5 | 10 | −5 | 4 | |

### Finals

| Team 1 | Series | Team 2 | Game 1 | Game 2 | Game 3 |
| Grêmio | 3–3 | Internacional | 0–1 | 2–0 | 0–0 |