Ilion (Greek: Ίλιον; before 1994: Νέα Λιόσια, Nea Liosia[3]) is a town and a suburb in the western part of the Athens agglomeration, Greece.

Ilion lies southeast of Mount Aigaleo, 6 km (4 mi) northwest of Athens.

[4] Neighbouring municipalities and towns are Agioi Anargyroi-Kamatero to the north and east, Petroupoli to the northwest and Peristeri to the south.

Ilion hosts many athletic clubs in several sports.

Presence or earlier presence in the higher divisions in their sport have the clubs Olympiakos Neon Liosion and Enosi Iliou.