Zefyri (Greek: Ζεφύρι) is a suburb of Athens and former municipality in West Attica, Greece.

[3] Zefyri is situated near the northeastern end of the Aigaleo mountains.

Its built-up area is continuous with those of the neighbouring suburbs Ano Liosia, Acharnes and Kamatero.

Zefyri is 2 km southeast of Ano Liosia, 2 km southwest of Acharnes and about 10 km north of Athens city centre.

The earthquake of 7 September 1999 damaged some tens of homes.