斯蒂尔韦尔岛是南极洲的岛屿，位于乔治五世地，处于加内特角东北面2.8公里，直径0.5公里，是韦群岛的最大岛屿，是瓦特湾入口处的西部，现时由南极条约体系管理。

 本条目引用的公有领域材料来自美国地质调查局的文档 《斯蒂尔韦尔岛》(数据来自地名信息系统)。

Stillwell Island (66°55′S 143°48′E / 66.917°S 143.800°E / -66.917; 143.800) is a small, steep rocky island, 0.25 nautical miles (0.5 km) in diameter, which is the largest member of the Way Archipelago. It lies at the west side of the entrance to Watt Bay, 1.5 nautical miles (2.8 km) northeast of Garnet Point. Discovered by the Australasian Antarctic Expedition (1911–14) under Douglas Mawson. He named it for Frank L. Stillwell, geologist with the expedition whose detailed survey included this coastal area.