Original Nike football shirt FC Barcelona 2005/06

The 2005–06 season was Futbol Club Barcelona's 107th season in existence and 77th consecutive season in the top flight of Spanish football, La Liga. It was manager Frank Rijkaard's third season in charge of the club, a season in which he managed to successfully retain the La Liga title, as well as winning the UEFA Champions League and Spanish Super Cup. The squad was largely unchanged from the previous season, with only two players – Santiago Ezquerro and Mark van Bommel – joining the club. Gerard left on a free transfer during the summer.

Samuel Eto'o was once again the top scorer for the team, improving on his tally of 29 goals from the 2004–05 season by five goals, including one in the Champions League final. Ronaldinho and Eto'o were selected in the 2005–06 FIFPro XI at the end of the season.