Ilion may refer to:

• Ilion (Ἴλιον) or (Latinized) Ilium, an Archaic name for the pre-classical city of Troy, hence the title of Homer's Iliad, also a Byzantine city and bishopric, which remains a Latin Catholic titular see as Ilium
• Ilion, Greece, a suburb of Athens, Greece, also known as Nea Liosia
• Ilium (Epirus), ancient city of Epirus, Greece
• Ilion, ancient name of Cestria (Epirus), a town of ancient Epirus, Greece
• Ilion (Thessaly), a town of ancient Thessaly, Greece
• Ilion Animation Studios, a CGI animation studio based in Madrid, Spain
• Ilion, New York, a village in Herkimer County, New York
• Ilion (album), a 2024 album by French band Slift

Look up ilion in Wiktionary, the free dictionary.

• Ilium (disambiguation)
• Iliad (disambiguation)
• Ileum, the third and final part of the small intestine

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