The Fomorians (, Modern ) are a supernatural race in Irish mythology. They are often portrayed as hostile and monstrous beings who come from the sea or underground. Later, they were portrayed as giants and sea raiders. They are enemies of Ireland's first settlers and opponents of the Tuatha Dé Danann, the other supernatural race in Irish mythology. However, their relationship with the Tuath Dé is complex and some of their members intermarry and have children. The Fomorians have thus been likened to the jötnar of Norse mythology.