The Anti-Fascist Council of the People's Liberation of Yugoslavia, known more commonly by its Yugoslav abbreviation AVNOJ, (Serbo-Croatian: Antifašističko Vijeće Narodnog Oslobođenja Jugoslavije, AVNOJ) was the political umbrella organization for the national liberation councils of the Yugoslav resistance against the World War II Axis occupation, eventually becoming the Yugoslav provisional wartime deliberative body. The AVNOJ was established on November 26, 1942 to administer terrorities under the Partisans' control. It was under the political leadership of the main resistance forces of Yugoslavia, during the Axis occupation of World War II.

After the Yugoslavian army capitulated on April 17, 1941, Yugoslavia was distributed between Germany, Italy, Bulgaria, Hungary and the newly formed puppet states: Independent State of Croatia, Independent State of Montenegro, Albanian Kingdom and Nedić Serbia. Opposition to these occupation regimes caused the formation of resistance movements, resulting in the Communist Party of Yugoslavia (CPY), then only active in the underground but fast gaining popularity, assuming the role of leading the forces in the Yugoslavian resistance. The CPY as an organisation comprised people from, and drew support from, the whole of Yugoslavia; as such, it represented a single Yugoslav identity.