Agrupacion Deportiva Alcorcon is a Spanish football club based in Alcorcon. They currently feature in the Segunda Division B - Group 2.
Alcorcon were established in 1971 by Dionisio Munoz Jerez and they spent most of their life between the fourth division and the regional leagues. In the 2000-2001 season they made their debut in the Segunda Division B.
Alcorcon created a shock in the footballing world when they defeated the mighty Real Madrid 4-0 at home in the first leg of the round of 32 in the Copa del Rey in the 2009-2010 season. They were defeated 1-0 by Madrid in the return leg but they progressed through to the last 16 stage 4-1 in aggregate.
Alcorcon play their home matches at the Municipal de Santo Domingo that can accommodate 3,000 spectators.