The Socialist Autonomous Province of Vojvodina (; often abbreviated SAP Vojvodina) was one of political entities formed in Yugoslavia after World War II and one of the two autonomous provinces of Serbia within Yugoslavia (the other being Kosovo), between 1945 and the breakup of Yugoslavia. Until 1963 the province was named Autonomous Province of Vojvodina (Autonomna Pokrajina Vojvodina, Аутономна Покрајина Војводина), and had a lower level of autonomy.