The 1986 FIFA World Cup was the 13th FIFA World Cup, a quadrennial football tournament for men's senior national teams. It was played in Mexico from 31 May to 29 June 1986. The tournament was the second to feature a 24-team format. Colombia had been originally chosen to host the competition by FIFA but, largely due to economic reasons, was not able to do so, and resigned in 1982. Mexico was selected as the new host in May 1983, and became the first country to host the World Cup more than once, after previously hosting in 1970.

The World Cup was won by Argentina (their second title, after winning in 1978). Argentina was captained by the 25-year-old Diego Maradona, who played a large part in his team's success by scoring his "Hand of God" goal, as well as another voted the "Goal of the Century", in the same quarter-final against England. These were two of the five goals that Maradona scored during the tournament, and he also created another five for his teammates. Argentina beat West Germany 3–2 in the final at Mexico City's Estadio Azteca. Total attendance was 2,394,031, an average per match of 46,039. Canada, Denmark and Iraq made their first appearances at the final stage.