Dacia Ripensis

Vidin (, ) is a port city on the southern bank of the Danube in north-western Bulgaria. It is close to the borders with Romania and Serbia, and is also the administrative centre of Vidin Province, as well as of the Metropolitan of Vidin (since 870).

province of the Roman Empire in the Balkans in Late Antiquity

thumb|right|250px|The northern Balkans, including Ratiaria in Dacia Ripensis, in the 6th century