town in the grand duchy of Baden, circle of the Middle Rhine, on the Pfizz, 3 miles east of Carlsruhe, with which it is connected by an avenue of poplars. It was formerly the residence of the margraves of Baden-Durlach, whose castle, on a contiguous height, is now in ruins, but the garden contains some Roman antiquities. Durlach has manufactures of porcelain ware and tobacco, and some trade in wine, fruit, corn, and other agricultural produce. Pop. about 5000.