The Carinthian plebiscite was held on 10 October 1920 in the area in southern Carinthia predominantly settled by Carinthian Slovenes. It determined the final border between the Republic of Austria and the newly formed Kingdom of Serbs, Croats and Slovenes (Yugoslavia) after World War I. The predominantly Slovene-speaking plebiscite area voted to remain part of Austria with a 59% majority.