# 1991 Supercopa Libertadores

The 1991 Supercopa Libertadores was the fourth season of the Supercopa Libertadores, a club football tournament for past Copa Libertadores winners. The tournament was won by Cruzeiro, who beat River Plate 3–2 on aggregate in the final.
As the new reigning Copa Libertadores champions, Chilean side Colo-Colo were admitted into the competition.
Former Copa Libertadores winners Atlético Nacional did not take part.

## Qualified teams

Up until the middle of 1991, 15 teams had won the Copa Libertadores at least once since its inaugural season in 1960; however, only 14 teams participated as Atlético Nacional declined to play in the tournament.
| Team | First won |
| Peñarol | 1960 |
| Santos | 1962 |
| Independiente | 1964 |
| Racing | 1967 |
| Estudiantes | 1968 |
| Nacional | 1971 |
| Cruzeiro | 1976 |
| Boca Juniors | 1977 |
| Olimpia | 1979 |
| Flamengo | 1981 |
| Grêmio | 1983 |
| Argentinos Juniors | 1985 |
| River Plate | 1986 |
| Atlético Nacional | 1989 |
| Colo-Colo | 1991 |

## Bracket

| First round | First round | First round | Quarter-finals | Quarter-finals | Quarter-finals | Semi-finals | Semi-finals | Semi-finals | | Finals | Finals | Finals |
| Grêmio | 2 | 1 (3) | | | | | | | | | | |
| River Plate | 2 | 1 (4) | | | | | | | | | | |
| River Plate | 2 | 1 (4) | River Plate | 1 | 1 (4) | | | | | | | |
| | | | Flamengo | 0 | 2 (3) | | | | | | | |
| Estudiantes | 1 | 0 | Flamengo | 0 | 2 (3) | | | | | | | |
| Flamengo | 1 | 2 | | | | | | | | | | |
| Flamengo | 1 | 2 | | | | River Plate | 2 | 3 | | | | |
| | | | | | | Peñarol | 0 | 1 | | | | |
| Racing | 2 | 0 | | | | | | | Peñarol | 0 | 1 | | | | |
| Peñarol | 3 | 0 | | | | | | | | | | |
| Peñarol | 3 | 0 | Peñarol | 3 | 0 | | | | | | | |
| | | | Santos | 2 | 0 | | | | | | | |
| Santos | 2 | 0 | Santos | 2 | 0 | | | | | | | |
| Argentinos Juniors | 1 | 0 | | | | | | | | | | |
| Argentinos Juniors | 1 | 0 | | | | | | | | River Plate | 2 | 0 |
| | | | | | | | | | | Cruzeiro | 0 | 3 |
| Colo-Colo | 0 | 0 (3) | | | | | | | | | | | Cruzeiro | 0 | 3 |
| Cruzeiro | 0 | 0 (4) | | | | | | | | | | |
| Cruzeiro | 0 | 0 (4) | Cruzeiro | 4 | 0 | | | | | | | |
| | | | Nacional | 0 | 3 | | | | | | | |
| Nacional | 1 | 0 | Nacional | 0 | 3 | | | | | | | |
| Boca Juniors | 1 | 2 | | | | | | | | | | |
| Boca Juniors | 1 | 2 | | | | Cruzeiro | 1 | 0 (5) | | | | |
| | | | | | | Olimpia | 1 | 0 (4) | | | | |
| | | | Olimpia | 1 | 2 | | | | | | | |
| | | | Independiente | 1 | 0 | | | | | | | |

## First round

Teams from the same nation could not be drawn against one another. Olimpia, as the title holders, entered the competition at the quarterfinal stage. Independiente also advanced to that same stage after the initial draw.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| River Plate | 3–3 (4-3 p) | Grêmio | 2–2 | 1–1 |
| Peñarol | 3–2 | Racing | 3–2 | 0–0 |
| Argentinos Juniors | 1–2 | Santos | 1–2 | 0–0 |
| Flamengo | 3–1 | Estudiantes | 1–1 | 2–0 |
| Cruzeiro | 0–0 (4-3 p) | Colo-Colo | 0–0 | 0–0 |
| Boca Juniors | 1–3 | Nacional | 1–1 | 0–2 |

## Quarterfinals

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Peñarol | 3–2 | Santos | 3–2 | 0–0 |
| River Plate | 2–2 (4-3 p) | Flamengo | 1–0 | 1–2 |
| Cruzeiro | 4–3 | Nacional | 4–0 | 0–3 |
| Independiente | 1–3 | Olimpia | 1–1 | 0–2 |

## Semi-finals

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| River Plate | 5–1 | Peñarol | 2–0 | 3–1 |
| Cruzeiro | 1–1 (5-4 p) | Olimpia | 1–1 | 0–0 |

## Final

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| River Plate | 2–3 | Cruzeiro | 2–0 | 0–3 |
* 1991 Supercopa Sudamericana Winners
* Cruzeiro First Title