Futbol Club Barcelona (Catalan pronunciation: [fubˈbɔl ˈklub bəɾsəˈlonə] (listen)), commonly referred to as Barcelona and colloquially known as Barça ([ˈbaɾsə]), is a professional football club based in Barcelona, Catalonia, Spain, that competes in La Liga, the top flight of Spanish football.

Founded in 1899 by a group of Swiss, Spanish, German and English footballers led by Joan Gamper, the club has become a symbol of Catalan culture and Catalanism, hence the motto "Més que un club" ("More than a club").

Unlike many other football clubs, the supporters own and operate Barcelona.

It is the fourth-most valuable sports team in the world, worth $4.76 billion, and the world's fourth richest football club in terms of revenue, with an annual turnover of €582.1 million.

 Barcelona are one of the world's most decorated clubs. Domestically, Barcelona has won a record 78 trophies: 27 La Liga, 31 Copa del Rey, 15 Supercopa de España, 3 Copa Eva Duarte, and 2 Copa de la Liga titles, as well as being the record holder for the latter four competitions. In international club football, the club has won 22 European and worldwide titles: five UEFA Champions League titles, a record four UEFA Cup Winners' Cups, five UEFA Super Cups, a record three Inter-Cities Fairs Cups, a joint record two Latin Cups, and three FIFA Club World Cups. Barcelona was ranked first in the International Federation of Football History & Statistics Club World Ranking for 1997, 2009, 2011, 2012, and 2015, and occupies the ninth position on the UEFA club rankings as of May 2023. The club has a long-standing rivalry with Real Madrid, and matches between the two teams are referred to as El Clásico.