The Spain national football team (Spanish: Selección Española de Fútbol) has represented Spain in international men's football competitions since 1920. It is governed by the Royal Spanish Football Federation, the governing body for football in Spain.

Spain is one of eight national teams to have been crowned world champions, having participated in a total of 16 of 22 FIFA World Cups and qualifying consistently since 1978. Spain also won three continental titles, having appeared at 11 of 16 UEFA European Championships. Spain currently competes in League A of the UEFA Nations League alongside the other top teams of Europe. Their best result was in the 2020–21 season where they reached the final, losing to France.

Spain is the only national team to win three consecutive major titles, including two back-to-back European Championships in 2008 and 2012, while becoming the first European team to win a FIFA World Cup held outside of Europe in 2010. From 2008 to 2013, Spain won the FIFA Team of the Year, the second-most of any nation, behind only Brazil. From the start of 2007 to the 2009 FIFA Confederations Cup, Spain achieved 35 consecutive undefeated matches, a feat which they shared with Brazil, and a sport record at the time. Their achievements have led many experts and commentators to consider the 2008–2012 Spain squads one of the best ever sides in the history of world football.

Spain has been a member of FIFA since FIFA's founding in 1904, even though the Spanish Football Federation was first established in 1909. The first Spain national football team was constituted in 1920, with the main objective of finding a team that would represent Spain at the 1920 Summer Olympics held in Belgium in that same year. Spain made their debut at the tournament on 28 August 1920 against Denmark, silver medalists at the last two Olympic tournaments. Spain managed to win that match by a scoreline of 1–0, eventually finishing with the silver medal. Spain qualified for their first FIFA World Cup in 1934, defeating Brazil in their first game and losing in a replay to the hosts and eventual champions Italy in the quarter-finals. The Spanish Civil War and World War II prevented Spain from playing any competitive matches between the 1934 World Cup and the 1950 edition's qualifiers. At the 1950 finals in Brazil, they topped their group to progress to the finals round, then finished in fourth place. Until 2010, this had been Spain's highest finish in a FIFA World Cup finals, which had given them the name of the "underachievers".