The 2008–09 UEFA Champions League was the 54th edition of Europe's premier club football tournament and the 17th edition under the current UEFA Champions League format. The final was played at the Stadio Olimpico in Rome on 27 May 2009. It was the eighth time the European Cup final has been held in Italy and the fourth time it has been held at the Stadio Olimpico. The final was contested by the defending champions, Manchester United, and Barcelona, who had last won the tournament in 2006. Barcelona won the match 2–0, with goals from Samuel Eto'o and Lionel Messi, securing The Treble in the process. In addition, both UEFA Cup finalists, Werder Bremen and Shakhtar Donetsk featured in the Champions League group stage.

The 2009 UEFA Champions League final was played on 27 May 2009 at the Stadio Olimpico in Rome, Italy. The match determined the winners of the 2008–09 season of the UEFA Champions League, a tournament for the top football clubs in Europe. The match was won by Barcelona of Spain, who beat England's Manchester United 2–0. Samuel Eto'o opened the scoring in the 10th minute, and Lionel Messi added another goal 20 minutes from the end to earn Barcelona a historic treble of La Liga, the Copa del Rey and the Champions League, a feat never before achieved by a Spanish club. The match was refereed by Swiss referee Massimo Busacca.