Super Bowl IV was an American football game played on January 11, 1970, at Tulane Stadium in New Orleans, Louisiana. It was the fourth and final AFL–NFL World Championship Game in professional football prior to the AFL–NFL merger taking effect the following season. The American Football League (AFL) champion Kansas City Chiefs defeated the National Football League (NFL) champion Minnesota Vikings by the score of 23–7. This victory by the AFL squared the Super Bowl series with the NFL at two games apiece as the two leagues merged after the game.

The National Football League (NFL) is a professional American football league that consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major professional sports leagues in the United States and Canada and the highest professional level of American football in the world. Each NFL season begins annually with a three-week preseason in August, followed by the 18-week regular season which runs from early September to early January, with each team playing 17 games and having one bye week. Following the conclusion of the regular season, seven teams from each conference advance to the playoffs, a single-elimination tournament that culminates in the Super Bowl, which is contested in February and is played between the winners of the AFC and NFC championship games.