Cape Berteaux is a cape surmounted by a high rock peak between Mikkelsen Bay and Wordie Ice Shelf on the west coast of Graham Land. The French Antarctic Expedition under Charcot, 1908–1910, originally applied the name Berteaux to an island in essentially this position. The British Graham Land Expedition (BGLE) under Rymill, 1934–1937, identified the feature sighted by Charcot as the cape described above. It is named by Charcot for a Monsieur Berteaux who helped obtain funds for his expedition.