The Copa Federación de España 2008–09 was the 16th staging of the Copa Federación de España, a knockout competition for Spanish football clubs in Segunda División B and Tercera División. The competition began on 2 August 2008 and ended with the finals on 2 April and 15 April 2009, where Real Jaén became champion after defeating Rayo Vallecano B 4-1 on aggregate.