The Copa Mercosur (Spanish pronunciation: [ˈkopa meɾkoˈsuɾ], Portuguese: Copa Mercosul [ˈkɔpɐ meʁkoˈsuw], "Mercosur Cup") was a football competition played from 1998 to 2001 by the traditional top clubs from Brazil, Argentina, Paraguay, Uruguay and Chile.

The competition was created by CONMEBOL to generate TV money to the participating teams, but it went beyond and ended up, together with the Copa Merconorte, as natural replacement to the CONMEBOL Cup.

Twenty teams played in the tournament.

The group winners and the best three runners-up qualified for the quarterfinals.

Throughout the brief history of the competition a total of five venues were used to host the final series: