AEK F.C., (Greek: AEK - Athlitiki Enosis Konstantinoupoleos), the Athletic Union of Constantinople, known in European competitions as AEK Athens, is a Greek association football club based in the city of Athens, Greece.
Established in Athens on April 13, 1924 by Greek refugees from Constantinople (now Istanbul) in the wake of the Greco-Turkish War, AEK has grown to become one of the most successful clubs in Greek football, winning 28 national titles (including 11 Championships, 13 Greek Cups, 1 League Cup, 2 Super Cups, 1 Pre-Mediterranean Cup) ,providing the Greek National Football Team with many of its star players, and continuously appearing in European (UEFA Champions League and UEFA Cup) competitions, having participated to the semi-final of UEFA Cup in 1977.AEK is also a member of the European Club Association . The club currently competes in the Super League Greece