State Anti-fascist Council for the National Liberation of Bosnia and Herzegovina

The State Anti-fascist Council for the National Liberation of Bosnia and Herzegovina (Serbo-Croatian: Zemaljsko antifašističko vijeće narodnog oslobođenja Bosne i Hercegovine, Земаљско антифашистичко виjеће народног ослобођења Босне и Херцеговине), commonly abbreviated as the ZAVNOBiH, was convened on 25 November 1943 in Mrkonjić Grad during the World War II Axis occupation of Yugoslavia. It was established as the highest representative and legislative body in the territory of Bosnia and Herzegovina under control of the Yugoslav Partisans.

Decisions of the second session of the ZAVNOBiH held in Sanski Most in 1944 established statehood of Bosnia and Herzegovina by claiming equal status with the other prospective federated republics in the planned establishment of the Democratic Federal Yugoslavia pursued by the Communist Party of Yugoslavia. The composition of the ZAVNOBiH was meant to represent as wide spectrum of the society as possible and included non-communist members but the communist leadership never relinquished control over the ZAVNOBiH or its bodies. The second session of the ZAVNOBiH adopted the Declaration on Rights of the Citizens of Bosnia and Herzegovina recognising equality of Serbs and Croats of Bosnia and Herzegovina with the Muslim population of the nascent Yugoslav federal unit.

The final session of the ZAVNOBiH was held in Sarajevo in April 1945. There the ZAVNOBiH was transformed into the People's Assembly of Bosnia and Herzegovina and it established the first government of Bosnia and Herzegovina.