Tyulen Island

65°01′03″S 64°07′05″W / 65.01750°S 64.11806°W / -65.01750; -64.11806ArchipelagoWilhelm ArchipelagoArea26.78 ha (66.2 acres)Length1 km (0.6 mi)Width530 m (1740 ft)AdministrationAdministered under the Antarctic Treaty SystemDemographicsPopulationuninhabited

Tyulen Island (Bulgarian: остров Тюлен, romanized: ostrov Tyulen, IPA: [ˈɔstrof tʲuˈlɛn]) is the mostly ice-covered island 1 km long in west-southwest to east-northeast direction and 530 m wide in the Dannebrog Islands group of Wilhelm Archipelago in the Antarctic Peninsula region. Its surface area is 26.78 ha.^[1]

The feature is so named because of its shape supposedly resembling a fur seal, 'tyulen' being the Bulgarian for 'seal', and in association with other descriptive names of islands in the area.^[1]

Tyulen Island is located at 65°01′03″S 64°07′05″W / 65.01750°S 64.11806°W / -65.01750; -64.11806, which is 3.2 km southwest of Kalmar Island, 1.4 km northwest of Meduza Island and 135 m northeast of Lamantin Island. British mapping in 2001.

• British Admiralty Nautical Chart 446 Anvers Island to Renaud Island. Scale 1:150000. Admiralty, UK Hydrographic Office, 2001
• Brabant Island to Argentine Islands. Scale 1:250000 topographic map. British Antarctic Survey, 2008
• Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated

• List of Antarctic and subantarctic islands

• Tyulen Island. SCAR Composite Gazetteer of Antarctica
• Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)

• Tyulen Island. Adjusted Copernix satellite image

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.