The knockout stage of 1978 FIFA World Cup was a single-elimination tournament involving the four teams that qualified from the second group stage of the tournament. There were two matches: a third place play-off contested by the group runners-up, and the final to decide the champions, contested by the group winners. The knockout stage began with the third place play-off on 24 June and ended with the final on 25 June 1978, both at the Estadio Monumental in Buenos Aires. Argentina won the tournament with a 3–1 victory over the Netherlands.