Unwin Ledge () is a flat-topped ridge or tableland, located to the west of the Hothem Cliffs and south of Mount Hall in the Asgard Range of Victoria Land, Antarctica. The upper surface of the feature is ice-covered and rises above the heads of the adjacent Newall Glacier and Canada Glacier. It was named by the New Zealand Geographic Board (NZGB) in 1998 for R.S. Unwin, former superintendent of the New Zealand DSIR Geophysical Observatory, who was active in research at Scott Base from 1958 to 1959. Ridges of Victoria Land Scott Coast