the Cocytus, le Cocyte, m.

Colchis, Colchide, f.

Colombia, la Colombie, f.

the Congo, le Congo, m.

Connecticut, Connecticut, m.

Constantina, Constantine, f.

Constantinople, Constantinople, f.

Cook’s Strait, n., le détroit de Cook, m.

Copenhagen, Copenhague, f.

the Coral Sea, la mer de Corail, f.