莫斯曼半岛是南极洲的半岛，位于南奥克尼群岛的劳里岛西部，马丁角处于半岛东部，长6公里，该半岛在1903年由苏格兰的探险队探测，现时由南极条约体系管理。

Mossman Peninsula is a narrow peninsula 3 nautical miles (6 km) long, extending south from the western part of Laurie Island and separating Scotia Bay and Wilton Bay, in the South Orkney Islands of Antarctica. Point Martin lies on the eastern side of the peninsula. It was discovered in 1821 by Captains George Powell and Nathaniel Palmer, and roughly charted on Powell's map of 1822. It was surveyed in 1903 by the Scottish National Antarctic Expedition under William Speirs Bruce, who named it for Robert C. Mossman, the meteorologist of the expedition.