Coordinates: 43°42′N 24°54′E / 43.700°N 24.900°E
Nikopol (Bulgarian: Никопол; historically Turkish: Niğbolu, Greek: Νικόπολις, Nikopolis, Hungarian: Nikápoly, Latin: Nicopolis) is a town in northern Bulgaria, the administrative center of Nikopol municipality, part of Pleven Province, on the right bank of the Danube river, 4 kilometres (2 miles) downstream from the mouth of the Osam river. It spreads at the foot of steep chalk cliffs along the Danube and up a narrow valley. As of December 2009, the town has a population of 3,892 inhabitants.
In Roman times, it was a village in the province of Moesia, first mentioned in 169. After the decline of the Roman Empire, the town turned out to be located at the northern border of the Byzantine Empire. In 1059, it was named Nicopolis, Greek for "City of Victory". During most of the Middle Ages, it was part of the Bulgarian Empire since its foundation in 681. After the fall of Tarnovo in 1393, the last Bulgarian Tsar Ivan Shishman defended what remained of the Empire from the fortress of Nikopol, where he was captured after the town was conquered by the Ottomans in 1395. Nikopol is therefore sometimes considered the capital of Bulgaria during these two years. It was the site of the Battle of Nicopolis, the last large-scale crusade of the Middle Ages, in 1396. At the fortress of Nicopolis, the united armies of Christian Europe headed by Hungarian king Sigismund and various French knights were defeated by the Ottomans under Bayezid I and his Serbian vassal Stefan Lazarević.