Nea Filadelfeia (Greek: Νέα Φιλαδέλφεια, meaning New Philadelphia) is a suburban town in the Athens agglomeration, Greece.

[3] It was named after the Anatolian city Filadelfeia, now Alaşehir in Turkey, and it was settled by Greek refugees from Asia Minor after the Greco-Turkish War (1919-1922).

Nea Filadelfeia is a suburb of Athens, 6 km (4 mi) north of the city centre.

Nea Filadelfeia is roughly located at the geographical center of the Attica peninsula, around 13 km from the sea to the south suburbs and at a low elevation.

The Ionikos Nea Filadelfeia sports club is renowned in Greece and abroad for its handball, volleyball and basketball achievements.