Tabarin Peninsula () 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. It was mapped in 1946 by the Falkland Islands Dependencies Survey (FIDS) and named after Operation Tabarin, the naval code name for the FIDS from 1943 to 1945.
This article incorporates public domain material from the United States Geological Survey document "Tabarin Peninsula" (content from the Geographic Names Information System).