皇帝半岛是南极洲的半岛，位于瑟斯顿岛以南的皮考克峡湾南部，长200公里、宽40公里，从阿博特冰架和科斯格罗夫冰架一直延伸至阿蒙森海，以美国海军五星上将命名。

King Peninsula (72°12′S 100°15′W / 72.200°S 100.250°W / -72.200; -100.250) is an ice-covered peninsula, 100 nautical miles (200 km) long and 20 nautical miles (40 km) wide, lying south of Thurston Island and forming the south side of Peacock Sound, Antarctica. It projects from the continental ice sheet and trends west between the Abbot Ice Shelf and Cosgrove Ice Shelf to terminate at the Amundsen Sea. The feature was photographed from the air by U.S. Navy Operation Highjump, 1946–47, and was plotted from these photos as a long island, or possible peninsula. Photos taken by the U.S. Navy in 1966 show it is a peninsula.