The 1979 Copa Libertadores represented the 20th edition of the tournament, in which saw Olimpia of Paraguay win the title for the first time. This allowed the Paraguayan side to play the Intercontinental Cup against Malmö FF of Sweden , in which the South American side won.
Argentina Boca Juniors (1978 Libertadores Champion)Independiente (Champion of Campeonato Nacional Argentino 1978)Quilmes (Champion of Campeonato Metropolitano Argentino 1978) Bolivia Bolívar (Champion of Campeonato Boliviano 1978)Jorge Wilsterman (Runners-up of Campeonato Boliviano 1978) Brazil Guarani (Champion of Campeonato Brasileiro 1978) Palmeiras (Runners-up of Campeonato Brasileiro 1978) Chile Palestino (Champion of Campeonato Chileno 1978)O’Higgins (Winner Liga Pre-Libertadores 1978) Colombia Millonarios (Champion of 1978 Campeonato Profesional) Deportivo Cali (Runners-up of 1978 Campeonato Profesional) Ecuador El Nacional (Champion of Campeonato Ecuatoriano 1978) Técnico Universitario (Runners-up of Campeonato Ecuatoriano 1978) Paraguay Olimpia (Champion of Campeonato Paraguayo 1978) Sol de América (Runners-up of Campeonato Paraguayo 1978) Peru Alianza Lima (Champion of Campeonato Peruano 1978) Universitario (Runners-up of Campeonato Peruano 1978) Uruguay Peñarol (Champion of Liga Pre-Libertadores 1978)Nacional (Runners-up of Liga Pré-Libertadores 1978) Venezuela Portuguesa (Champion of Campeonato Venezuelano 1978) Galicia (Runners-up of Campeonato Venezuelano 1978) Boca Juniors, of Argentina skips to semifinals as current champions.
6 goles Juan José Oré (Universitario) Miltäo (Guaraní)