Williams Nunatak

Williams Nunatak (

66°26′S 110°43′E / 66.433°S 110.717°E / -66.433; 110.717Coordinates: 66°26′S 110°43′E / 66.433°S 110.717°E / -66.433; 110.717) is a small coastal nunatak just east of the Windmill Islands, standing at the south side of the terminus of Peterson Glacier where it faces on Penney Bay. First mapped from air photos taken by U.S. Navy Operation Highjump in February 1947. Named by the Advisory Committee on Antarctic Names (US-ACAN) for , member of one of the two U.S. Navy Operation Windmill photographic units which obtained ground and aerial photographic coverage of this area in January 1948.

 This article incorporates public domain material from the United States Geological Survey document: "Williams Nunatak". (content from the Geographic Names Information System)