A.E.K. (sports club)

A.E.K. (Greek: AEK [ˈaek], formally Αθλητική Ένωσις Κωνσταντινουπόλεως; Athlitikí Énosis Konstantinoupόleos, Athletic Union of Constantinople) is a major Greek multi-sport club based in Nea Filadelfeia, Attica. The club is more commonly known in European competitions as A.E.K. Athens.

Established in Athens, in 1924, by Greek refugees from Constantinople, after the 1919–22 Greco-Turkish war and the subsequent population exchange between Greece and Turkey, it is the most successful club in Greece, as it maintains more than 30 sports departments (football, basketball, handball, volleyball, futsal, etc.), under the control of its amateur sports arm, Amateur AEK (Greek: Ερασιτεχνική ΑΕΚ; Erasitechnikί AEK), with noteworthy departments, such as its handball team, which is the best Greek handball club, in terms of European achievements, having obtained 1 EHF European Cup in 2021 and having also reached the final in 2018 and in 2025 and the semi-finals in 2019. AEK sports club is best known for its professional football team, which has made some notable wins in European competitions and reached the quarter-finals of the UEFA Champions League in 1969 and the semi-finals of the UEFA Europa League in 1977, having also won 13 Greek Championships, 16 Greek Cups, 1 Greek League Cup, 2 Greek Super Cups and also for its professional basketball team which has won 8 Greek Basketball Leagues, 5 Greek Basketball Cups, 2 FIBA Saporta Cups, 1 Basketball Champions League and 1 FIBA Intercontinental Cup.