Mount Siple (/ˈsaɪpəl/ SIGH-p'l)[5] is a potentially active Antarctic shield volcano, rising to 3,162 metres (10,374 ft) and dominating the northwest part of Siple Island, which is separated from the Bakutis Coast, Marie Byrd Land, by the Getz Ice Shelf.

[3] Recely Bluff is on the northeast slope of the mountain, about 7 nautical miles (13 km) from the peak.

Its volume of 1,800 cubic kilometres (430 cu mi) is comparable to that of Mount Erebus.

[6] The volcano was visited in February 2017 as part of the Swiss Polar Institute's Antarctic Circumnavigation Expedition.

Al Jazeera English Science and Technology editor Tarek Bazley was on board and filed a news report on his visit to a colony of Adele penguins breeding there.