Group B of the 1978 FIFA World Cup was one of two groups of nations competing for the de facto semi-finals of the
1978 FIFA World Cup. The group's first round of matches began on 14 June and its last matches were played on 21 June. All six group matches were played either at the
Estadio Ciudad de Mendoza in
Mendoza, or the
Estadio Gigante de Arroyito in
Rosario. The group consisted of
Argentina,
Brazil,
Peru and
Poland. Argentina advanced to the final match, and Brazil advanced to the third place match.[1]
Qualified teams
The winners of Group 2 and 4 and the runners-up of Group 1 and 3 qualified for Group B of the second round.