Larkman Nunatak () is a large, isolated rock nunatak, 2,660 m, at the southeast end of the Grosvenor Mountains, 12 nautical miles (22 km) east of Mauger Nunatak. Named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961–62) for A.H. Larkman, Chief Engineer of the Shackleton's Imperial Trans-Antarctic Expedition (1914–17) from Australia to the Ross Sea.
This article incorporates public domain material from the United States Geological Survey document "Larkman Nunatak" (content from the Geographic Names Information System).