Mount Ritchie () is a mountain rising over 1600 m in the southeast part of Warren Range, Antarctica. The feature is northeast of Wise Peak on the west side of Deception Glacier. Named by the Victoria University of Wellington Antarctic Expedition (VUWAE), 1970–71, after A. Ritchie, curator of fossils at the Australian Museum, Sydney, a member of the VUWAE party that discovered important sites of fossil fish in this Skelton Neve area. Mountains of Oates Land