Enyo (/ᵻˈnaɪoʊ/; Greek: Ἐνυώ) was a goddess of war in Greek mythology, the companion of the war god Ares. She is also is called the "sister of War", in a role closely resembling that of Eris; with Homer in particular representing the two as the same goddess. She is also accredited as the mother of the war god Enyalius, by Ares. However, the name Enyalius or Enyalios can also be used as a title for Ares himself.