CADURCUM, Cadurcus, and Cadurn, (anc. geog.), a town of the Cadurci a people of Aquitania; situated between the rivers Oldus running from the north, and the Tarnis from the south, and falling into the Garumna: now Cahors, capital of the territory of the Querci, in Guienne. A part of the Cadurci, to the south next the Tarnis, were called Lepontii.

CADUSII (anc. geog.), a people of Media Atropatene, situated to the west in the mountains, and reaching to the Caspian sea; between whom and the Medes, perpetual war and enmity continued down to the time of Cyrus.