In the award-winning video game franchise "Dragon Age," the character Morrigan is a feared (sort of) and rude so-called "Witch of the Wilds" who may aid the protagonist(s). In the game, her name is pronounced mo-rih-gun.
The Morrigan appears as a character in Kevin Hearne's Iron Druid Chronicles. She is the Celtic Goddess of Death, able to transform into a great black bird, among other forms.
Morrígan is a witch and ally in the new game Dragon Age: Origins. The name suits her because she has feathers on her right shoulder and is very war-like.
This name was used in the book "Hounds of the Morrigan" as the collective name of the triple battle goddess. If you like Irish mythology then you should definitely read the book.