Morsø Municipality (Danish: Morsø Kommune) is a municipality (Danish, kommune) in Region Nordjylland in northern Denmark. The municipality is located on the island of Morsø or Mors, an island in the Limfjord, the sound that separates the island of Vendsyssel-Thy from the rest of Jutland Peninsula. The municipality includes the smaller island of Agerø, and covers an area of 368 km2. It has a total population of 19,734 (2024). Its mayor is Egon Pleidrup Poulsen, a member of the Social Democrats (Socialdemokraterne) political party.