The 2011–12 Rayo Vallecano season was the club's 78th season in history and its 13th season in La Liga, the top division of Spanish football, following promotion after finishing as runners-up in the Segunda División.

Rayo Vallecano will compete for their second La Liga title and will enter the Copa del Rey in the Round of 32.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Total income: €1.7 million Source: Rayovallecano.es