阿代尔半岛是南极洲的半岛，位于维多利亚地东北部，长60公里，从阿代尔角延伸至罗杰特角，该半岛现时由南极条约体系管理。

Adare Peninsula (71°40′S 170°30′E / 71.667°S 170.500°E / -71.667; 170.500), sometimes called Cape Adare Peninsula, is a high ice-covered peninsula, 40 miles (60 km) long, in the northeast part of Victoria Land, extending south from Cape Adare to Cape Roget. The peninsula is considered the southernmost point of the Borchgrevink Coast, named for Carsten Borchgrevink (1864-1934). Named by the New Zealand Antarctic Place-Names Committeefor nearby Cape Adare.