Oakley Glacier (73°42′S166°08′E), is a glacier in the Mountaineer Range that descends east from Mount Casey to merge with the floating tongue from the Icebreaker Glacier at Lady Newnes Bay, in Victoria Land, Antarctica. Mapped by U.S. Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-64. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Commander Donald C. Oakley, U.S.