莫森半岛是南极洲的半岛，位于乔治五世地，处于斯拉瓦冰架西面，末端是哈德森角，长50公里，该半岛由澳大利亚探险队拍摄的照片被绘入地图。

Mawson Peninsula (68°35′S 154°11′E / 68.583°S 154.183°E / -68.583; 154.183) is a high (455-metre (1,500 ft)), narrow, ice-covered peninsula on the George V Coast, on the west side of the Slava Ice Shelf, Antarctica, terminating in Cape Hudson. It extends for over 30 nautical miles (56 km) in a northwesterly direction. The peninsula was photographed from the air by U.S. Navy Operation Highjump, 1946–47, and was sketched and photographed by Phillip Law of the Australian National Antarctic Research Expeditions who flew along it to its northern end in February 1959. It was named by the Antarctic Names Committee of Australia for Sir Douglas Mawson.