Jagged Island is an island 2 nautical miles (4 km) long, lying 1 nautical mile (2 km) east of Dodman Island and 8 nautical miles (15 km) west of Ferin Head, off the west coast of Graham Land, Antarctica. It was probably first sighted in January 1909 by the French Antarctic Expedition under Jean-Baptiste Charcot, and was charted and named by the British Graham Land Expedition, 1934–37, under John Rymill.