Madigan Nunatak (67°9′S 143°21′E / 67.150°S 143.350°E / -67.150; 143.350) is an isolated nunatak that rises above the continental ice 18 nautical miles (33 km) south of Cape Gray, Antarctica. It was discovered by the Australasian Antarctic Expedition (1911–14) under Douglas Mawson, who named it for Cecil T. Madigan, the meteorologist with the expedition.

 This article incorporates public domain material from "Madigan Nunatak". Geographic Names Information System. United States Geological Survey.