Surname Morrigan (Morrigan 
, Морриган) , around the globe, is a rare cognomen. The surname Morrigan is characteristic of Australia, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Canada. In absolute terms, it most frequently occurs in the United States, Australia, and the United Kingdom. Likewise, Morrigan is the forename as well as the last name.