The Kings World Cup Nations is an international seven-a-side football tournament based on the Kings League format created by Gerard Piqué and Ibai Llanos. Unlike the Kings World Cup Clubs launched in 2024, which is a club competition, this tournament features teams to represent their respective nations, similar to the FIFA World Cup.
Before the start of the 2025 season, the Kings World Cup Nations was announced, this time with national teams. During the launch event for the Kings League Italy on 18 November 2024, it was confirmed that Italy would be hosting the tournament from 1 to 12 January 2025, with the finals taking place in Turin's Juventus Stadium.
The Kings World Cup Nations officially began on 1 January 2025, with Japan beating hosts Italy 3-1 in the opening match. The majority of the matches were held in Milan. The final was held at the Juventus Stadium, where Brazil became the champion after defeating Colombia 2-6.
On 11 June 2025, after the Kings World Cup Clubs Round of 16 match between Dendele FC and Desimpedidos Goti, it was announced in a video featuring Kings League Brazil chairmen that the 2nd edition of the Kings World Cup Nations will be held in São Paulo in January 2026.
For the 2025 edition, it featured a swiss-system tournament format.
For the 2026 edition, with the expansion to 20 teams, the format changed to a group stage and knockout stage.
The entire tournament is livestreamed on Twitch, YouTube and Kick, both from the official Kings League channels and individual feeds from the teams' chairpersons.