Haidari Football Club (Greek: Α.Ο. Χαϊδαρίου A.O. Haidariou) is a Greek football club, based in Haidari, Athens. It currently plays in the local Athens Football Clubs Association championships, the fifth level of Greek football. The club's biggest achievement was participating in the Beta Ethniki for three consecutive seasons, 2005–06 through 2007–08, as well as reaching the Round of 16 in the 2006–07 Greek Cup following their win against AEK Athens F.C.