The McCuddin Mountains is a small cluster of mountains in Antarctica consisting mainly of two large mountains, Mount Flint and Mount Petras, along with several scattered peaks and nunataks. Located in Marie Byrd Land, east of the Ames Range. The mountains were discovered and photographed from the air in a flight from West Base of the U.S. Antarctic Service on Dec. 14, 1940. They were mapped by U.S. Geological Survey (USGS) from surveys and U.S. Navy air photos, 1959-65. Named by Advisory Committee on Antarctic Names (US-ACAN) for Rear Admiral Leo B. McCuddin, U.S. Navy (USN), Commander of the U.S. Naval Support Force, Antarctica, 1972.