Zvornik is a city on the Drina river in northeastern Bosnia and Herzegovina, located south of the town of Bijeljina in Bosnia and Herzegovina. The town Mali Zvornik ("little Zvornik") lies directly across the river in Serbia, and not far north is Loznica. Zvornik is first mentioned in 1410, although it was known as Zvonik ("bell tower") at that time. The town's geographic location has made it an important trade link between Bosnia and the east. For instance, the main road connecting Sarajevo and Belgrade runs through the city. Zvornik has also the distinction of being the only city in Bosnia that directly lies on the border to Serbia.
During the Ottoman period, Zvornik was the capital of the Zvornik sanjak (an administrative region). This was primarily the case because of the city's crucial role in the economy and the strategic importance of the city's location. In the year 1806 the city of Zvornik was home to the famous Bosniak, kapetan Mehmed-beg Kulenović.