Messent Peak is one of the Bristly Peaks, rising to about 1,100 metres (3,600 ft) just west of Brodie Peak and 5 nautical miles (9 km) southwest of Mount Castro in the central Antarctic Peninsula. It was named by the Advisory Committee on Antarctic Names in 1977 for David R. Messent, a geodesist at the U.S. Army Topographic Command, Palmer Station, winter party 1969.