| Tournament details | |
|---|---|
| Dates | March 3 – July 28 |
| Teams | 21 (from 10 associations) |
| Final positions | |
| Champions |  Grêmio (1st title) |
| Runners-up |  Peñarol |
| Tournament statistics | |
| Matches played | 75 |
| Goals scored | 184 (2.45 per match) |
← 1982 1984 → | |
The Copa Libertadores 1983 was the 24th edition of the Copa Libertadores, CONMEBOL's annual international club tournament. Grêmio won the competition against Peñarol.