The Parliament of Yugoslavia was the deliberative body of Yugoslavia. Before World War II in the Kingdom of Yugoslavia it was known as the National Assembly (Narodna skupština), while in the Socialist Federal Republic of Yugoslavia the name was changed to Federal Assembly (Serbo-Croatian: Savezna skupština/Савезна скупштина). It was the official deliberative body of the Yugoslav state, which existed from 1918 to 1992 and resided in the building which now convenes the National Assembly of Serbia.
The first parliamentary body of the state was the Temporary National Representation which existed until the first elections were held on 28 November 1920. The new parliament was known as the Constitutional Assembly. The assembly adopted the controversial Vidovdan Constitution on 28 June 28, 1921, after which it became known as the National Assembly.
During the January 6th Dictatorship, the kingdom became a constitutional monarchy and a Senate was formed in addition to the National Assembly.
During the Axis occupation of Yugoslavia (1941−1944), the Anti-Fascist Council for the National Liberation of Yugoslavia (AVNOJ) was the political umbrella organization for the national liberation councils of the Yugoslav Resistance.
As a result of the Treaty of Vis, AVNOJ was reformed into the Temporary National Assembly which also included several dozen members of the assembly elected in 1938. After the consolidation of power by the communists in late 1945, the Constitutional Assembly was established. The Constitutional Assembly was divided into two houses: the Federal Assembly, and the Assembly of Peoples.