Calafat is a city in Dolj County, southern Romania, in the region of Oltenia. It lies on the river Danube, opposite the Bulgarian city of Vidin, to which it is linked by the Calafat-Vidin Bridge, opened in 2013. After the destruction of the bridges of late antiquity, for centuries Calafat was connected with the southern bank of the Danube by boat, and later on by ferryboat.

Dolj County is a county (județ) of Romania on the border with Bulgaria, in Oltenia, with the capital city at Craiova.