Cape Shackleton is a cape in the Qaasuitsup municipality in northwestern Greenland. The cape is the western promontory on Apparsuit Island, delimiting the northern end of Tasiusaq Bay, an indentiation of Baffin Bay in the Upernavik Archipelago.
Coordinates: 73°48′13″N 56°49′57″W / 73.80361°N 56.83250°W