The Majorcan Union (Catalan: Unió Mallorquina, UM; IPA: [uniˈo məʎorˈcinə]) was a regional liberal party on the island of Majorca, Spain.It was founded in October 1982, as a nationalist continuation of the then disintegrating Union of the Democratic Centre (UCD). The main founder was Jeroni Albertí Picornell.In 1993 it merged with the Unió Independent de Mallorca and Convergència Balear.