Ernmas is an Irish mother goddess, mentioned in Lebor Gabála Érenn and "Cath Maige Tuired" as one of the Tuatha Dé Danann. Her daughters include the trinity of eponymous Irish goddesses Ériu, Banba and Fódla, the trinity of war goddesses the Badb, Macha and the Mórrígan (who is also named Anann), and also a trinity of sons, Glonn, Gnim, and Coscar. Her other sons are Fiacha and Ollom. Ernmas was killed during the first battle of Mag Tuired.
- Macalister, R. A. Stewart. "Lebor Gabála Érenn". Part IV. Irish Texts Society, Dublin, 1941. § VII, First Redaction.
- Gray, Elizabeth A., ed. "Cath Maige Tuired: The Second Battle of Mag Tuired". Irish Texts Society, Dublin, 1982. §12.