This article lists political parties in Yugoslavia (1918–1991). Kingdom of Yugoslavia was a multi-party state (1918–1929, 1931–1941) and a one-party state under a royal dictatorship (1929–1931). Socialist Federal Republic of Yugoslavia was a Marxist–Leninist one-party state (1945–1948), a Titoist one-party state (1948-1990), and also a multi-party state for short period before the state dissolution (1990–1991).