The Copa Libertadores 1989 was the 30th edition of the Copa Libertadores, South America's premier international club association football tournament organized by CONMEBOL. 21 teams participated in the competition, divided by groups of four. The first three teams in each group qualified for the next round. Nacional of Montevideo entered directly into the second round as the champions of Copa Libertadores 1988. The tournament started with the first game on February 12, 1989, and ended on May 31, 1989.