Mount LeMasurier (75°27′S139°39′W) is an ice-free coastal mountain which rises to more than 800 metres (2,600 ft) between Mount Vance and Mount Langway, in the central part of the Ickes Mountains of Marie Byrd Land, Antarctica. The feature was discovered and photographed from aircraft of the United States Antarctic Service, 1939–41, and was named by the Advisory Committee on Antarctic Names for Wesley E.