索布拉尔半岛是南极洲的半岛，位于葛拉汉地的北部，长20公里、宽9公里，西面是蒙德拉加湾，该半岛取名自南端的索布拉尔角。

• SCAR Composite Antarctic Gazetteer.

Sobral Peninsula (64°30′S 59°40′W / 64.500°S 59.667°W / -64.500; -59.667) is a high and mainly ice-covered peninsula projecting from Nordenskjöld Coast in northern Graham Land, Antarctica. The feature is 11 nautical miles (20 km) long and 5 nautical miles (9 km) wide and projects southward between Larsen Inlet to the east and Mundraga Bay to the west. The name was applied by United Kingdom Antarctic Place-Names Committee (UK-APC) (1963) and derives from Cape Sobral at the south end of this peninsula.