Dewar Nunatak (67°20′S 68°15′W / 67.333°S 68.250°W / -67.333; -68.250) is a mainly snow-covered nunatak rising to 520 metres (1,700 ft) in the middle of Shambles Glacier, on the east coast of Adelaide Island. It was named by the UK Antarctic Place-Names Committee in 1963 for Graham J.A. Dewar, a British Antarctic Survey geologist at Adelaide station, 1961–63.

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