| 1990 Supercopa Libertadores João Havelange | |
|---|---|
| Tournament details | |
| Dates | 18 October 1990 – 11 January 1991 | 
| Teams | 13 (from 4 confederations) | 
| Final positions | |
| Champions | .svg.png.webp) Olimpia (1st title) | 
| Runners-up |  Nacional | 
| Tournament statistics | |
| Matches played | 24 | 
| Goals scored | 61 (2.54 per match) | 
| Top scorer(s) |  Raúl Vicente Amarilla (7 goals) | 
The 1990 Supercopa Libertadores was the third season of the Supercopa Libertadores, a club football tournament for past Copa Libertadores winners. The tournament was won by Olimpia, who beat Nacional 6–3 on aggregate in the final.
Despite being a former Copa Libertadores winner, Colombian side Atlético Nacional were forced to withdraw after CONMEBOL had prohibited international matches in Colombia in 1990 following allegations that a referee was threatened by six gunmen on the occasion of a match between Atlético Nacional and Vasco da Gama during the 1990 Copa Libertadores quarter-finals.
First round
The matches were played from 18 October to 8 November. Teams from the same nation could not be drawn against one another. Boca Juniors, as the title holders, entered the competition at the quarter-finals.
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg | 
|---|---|---|---|---|
| Peñarol  | 2–2 (4–2 p) | .svg.png.webp) Santos | 0–0 | 2–2 | 
| Independiente  | 2–3 |  Nacional | 1–1 | 1–2 | 
| Cruzeiro .svg.png.webp) | 1–1 (2–4 p) |  Racing | 1–0 | 0–1 | 
| Argentinos Juniors  | 4–4 (4–3 p) | .svg.png.webp) Flamengo | 3–1 | 1–3 | 
| River Plate  | 3–3 (3–4 p) | .svg.png.webp) Olimpia | 3–0 | 0–3 | 
| Grêmio .svg.png.webp) | 1–2 |  Estudiantes | 1–0 | 0–2 | 
Quarter-finals
The matches were played from 14 to 21 November.
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg | 
|---|---|---|---|---|
| Peñarol  | 2–1 |  Boca Juniors | 0–1 | 2–0 | 
| Olimpia .svg.png.webp) | 4–1 |  Racing | 1–1 | 3–0 | 
| Argentinos Juniors  | 3–4 |  Nacional | 2–1 | 1–3 | 
|  Estudiantes | Bye | |||
Semi-finals
The matches were played from 28 November to 10 December.
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg | 
|---|---|---|---|---|
| Estudiantes  | 0–0 (3–5 p) |  Nacional | 0–0 | 0–0 | 
| Peñarol  | 2–7 | .svg.png.webp) Olimpia | 2–1 | 0–6 | 
Final
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg | 
|---|---|---|---|---|
| Nacional  | 3–6 | .svg.png.webp) Olimpia | 0–3 | 3–3 | 
| 1990 Supercopa Sudamericana Winners | 
|---|
| .svg.png.webp) Olimpia First title |