Belgium U21

The Belgian national football team has officially represented Belgium in association football since their maiden match in 1904. The squad is under the global jurisdiction of FIFA and is governed in Europe by UEFA—both of which were co-founded by the Belgian team's supervising body, the Royal Belgian Football Association (RBFA). Periods of regular Belgian representation at the highest international level, from 1920 to 1938, from 1982 to 2002 and again from 2014 onwards, have alternated with mostly unsuccessful qualification rounds. Most of Belgium's home matches are played at the King Baudouin Stadium in Brussels.

Belgium's national team have participated in three quadrennial major football competitions. It appeared in the end stages of thirteen FIFA World Cups and five UEFA European Championships, and featured at three Olympic football tournaments, including the 1920 Olympic tournament which they won. Other notable performances are victories over four reigning world champions—West Germany, Brazil, Argentina and France—between 1954 and 2002. Belgium has long-standing football rivalries with its Dutch and French counterparts, having played both teams nearly every year from 1905 to 1967. The squad has been known as the Red Devils since 1906; its fan club is named "1895".