Mugison (or Örn Elías Guðmundsson) (born 4 September 1976 in Reykjavík) is an Icelandic musician.

Mugison got his nickname Mugison while on holiday visiting his father Muggi (Muggur) in Malaysia. His father is a karaoke singer and as the crowds at the karaoke bars in the small fishing villages they were touring had problems pronouncing his name they came to call him Mugison. Mugison is the Icelandic naming convention for the surname of someone who is the son of Muggi.