Barjac is a commune in the Gard department in southern France. The valley of the river Cèze lies to the south, and the river Ardèche is 10 km to the north. Barjac is a Renaissance town. The old city centre retains ancient narrow streets, squares and houses of that time. The Château of the Counts of the Roure with its stone courtyard, once called the "Citadel", has been rebuilt several times from the twelfth century.