贝恩冰原岛峰是南极洲的冰原岛峰，位于麦克罗伯特森地的阿梅里冰架东侧，属于曼宁冰原岛峰的一部分，以气象观测员命名，现时由南极条约体系管理。

Bain Nunatak (71°6′S 71°35′E / 71.100°S 71.583°E / -71.100; 71.583) is one of the Manning Nunataks, on the east side of the Amery Ice Shelf. The nunataks were photographed by U.S. Navy Operation Highjump (1946–47) and Australian National Antarctic Research Expeditions (ANARE) (1957). They were visited by the Soviet Antarctic Expedition in 1965 and by the ANARE Prince Charles Mountains survey party in 1969. This feature was named for C.J. Bain, weather observer at Mawson Station in 1969 and a member of the 1969 ANARE survey party.