Tabarin Peninsula (63°32′S57°0′W) is a peninsula 15 nautical miles (28 km) long and 5 to 12 nautical miles (22 km) wide, lying south of the trough between Hope Bay and Duse Bay and forming the east extremity of Trinity Peninsula in the Antarctic Peninsula. Discovered and charted by the Swedish Antarctic Expedition, 1901–04, under Nordenskjold.