The Morrígan ("phantom queen") or Mórrígan ("great queen"), also written as Morrígu or in the plural as Morrígna, and spelt Morríghan or Mór-ríoghain in Modern Irish, is a figure from Irish mythology who appears to have been considered a goddess, although she is not explicitly referred to as such in the texts.
- The Morrígan is a goddess of battle, strife, and sovereignty. She sometimes appears in the form of a crow, flying above the warriors, and in the Ulster cycle she also takes the forms of an eel, a wolf and a cow. She is generally considered a war deity comparable with the Germanic Valkyries, although her association with a cow may also suggest a role connected with wealth and the land.
- She is often depicted as a trio of goddesses, all sisters, although membership of the triad varies; the most common combinations are Badb, Macha and Nemain, or Badb, Macha and Anand; Anand is also given as an alternate name for Morrigu. Other accounts name Fea, and others.