The Sanjak of Zvornik (Turkish: İzvornik Sancağı, Serbo-Croatian: Zvornički sandžak) was one of the sanjaks in the Ottoman Empire with Zvornik (in modern-day Bosnia and Herzegovina) as its administrative centre.

It was divided into 4 different districts: Žepče, Maglaj, Tuzla and Kladanj.

During the Ottoman period, Zvornik was the capital of the Sanjak of Zvornik (an administrative region) within the Bosnia Eyalet.

This was primarily the case because of the city's crucial role in the economy and the strategic importance of the city's location.

[1] In the year 1806 the city of Zvornik was home to the famous Bosniak, kapetan Mehmed-beg Kulenović.