1978 FIFA World Cup Netherlands and Brazil were the gold, silver and bronze medalists, respectively. Iran and Tunisia made their first appearances in the tournament. This was also the last World Cup tournament to use the original inclusion of 16 teams. Since the first World Cup in 1930, only 15 teams (plus the host, who automatically qualified) had been allowed to qualify (the reigning title holders also received automatic qualification from 1934 through 2002); but for the next World Cup, in Spain, FIFA expanded that tournament to 24 teams. The official match ball was the Adidas Tango. Argentina was chosen as the host nation
1978 FIFA World Cup deliberately sabotaging the Minella stadium's pitch to weaken Brazil's chances of success. For a list of all squads that appeared in the final tournament, see "1978 FIFA World Cup squads". With six goals, Mario Kempes is the top scorer in the tournament. In total, 102 goals were scored by 62 players, with three of them credited as own goals. In 1986, FIFA published a report that ranked all teams in each World Cup up to and including 1986, based on progress in the competition, overall results and quality of the opposition. The rankings for the 1978 tournament were as follows: