Mount Zeigler (77°13′S143°3′W) is a mountain (1,120 m) 3 miles (4.8 km) north-northeast of Mount Swartley in the Allegheny Mountains, Marie Byrd Land. Mapped by United States Antarctic Service (USAS) (1939–41) and by United States Geological Survey (USGS) from surveys and U.S. Navy air photos (1959–65). Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Commander Luther L. Zeigler, U.S.