Pryor Cliff () is a distinctive rock cliff which faces northward toward Cosgrove Ice Shelf, standing 5 nautical miles (9 km) northeast of Mount Nickens at the north end of the Hudson Mountains. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-66. Named by Advisory Committee on Antarctic Names (US-ACAN) for Douglas A. Pryor, map compilation specialist who contributed significantly to construction of USGS sketch maps of Antarctica.