Two times European champions, Barça completed a triple crown in 2003 by winning the season's league, cup and EuroLeague.

Some of the well-known players that have played with the team included Pau Gasol, Rony Seikaly, Marc Gasol, Anderson Varejão, Juan Carlos Navarro, Jaka Lakovič, Šarūnas Jasikevičius, Dejan Bodiroga, Gianluca Basile, Ricky Rubio, Juan Antonio San Epifanio, Saša Đorđević, and Tony Massenburg.

During these early years, basketball in Catalonia was dominated by clubs such as CE Europa, Laietà BC and Société Patrie (later CB Atlètic Gràcia) and it was not until the 1940s that FC Barcelona created a basketball team.

In 1961 the club president Enric Llaudet dissolved the team in spite of its popularity.

Their persistence eventually paid off and in 2003, inspired by Dejan Bodiroga, Gregor Fučka, Šarūnas Jasikevičius and Juan Carlos Navarro, they won the EuroLeague, beating Benetton Treviso 76–65 in front of a packed Palau Sant Jordi in Barcelona.

[4] They repeated the feat in 2010, defeating Olympiacos by a wide 86–68 in Paris,[5] and that October, they made further history when they beat the two-time defending NBA champion Los Angeles Lakers – including Kobe Bryant and FCB Bàsquet alumnus and Barcelona native Pau Gasol – 92–88 at the Palau Sant Jordi as part of the 2010 NBA Europe Live Tour.

Two FCB Bàsquet players in that game – captain Navarro and point guard Ricky Rubio – either had or went on to play in the NBA.

In the following years, Barcelona would stay on top of Spanish basketball, playing almost all league and cup finals against rival Real Madrid.

However, the team saw a return to form in the Copa del Rey, which was won in 2018, in 2019 and in 2021 defeating Real Madrid on all three finals.

[7] From 2004 until 2007 the club was sponsored by the Winterthur Group, a Swiss insurance company with offices in Barcelona since 1910.