| Tournament details | |
|---|---|
| Dates | February 2 – July 6 |
| Teams | 19 (from 9 associations) |
| Final positions | |
| Champions |
|
| Runners-up |
|
| Tournament statistics | |
| Matches played | 65 |
| Goals scored | 187 (2.88 per match) |
Copa Libertadores 1973 was won by defending champions Independiente of Argentina after defeating Colo Colo of Chile in a third decisive game. The third match which ended 2-1 in extra time was necessary after the previous two leg matches ended in draws.