Fenriskjeften Mountain is a large bare rock mountain which in plan resembles a hairpin, forming the south portion of Drygalski Mountains in Queen Maud Land. Plotted from air photos by the German Antarctic Expedition (1938–39). Mapped from surveys and air photos by Norwegian Antarctic Expedition (1956–60) and because of its shape named Fenriskjeften (Fenrir's jaw), after the wolf in Norse mythology.
This article incorporates public domain material from the United States Geological Survey document "Fenriskjeften Mountain" (content from the Geographic Names Information System).