Lashly Mountains () is a small group of mountains, the most prominent being Mount Crean (2,550 m), standing south of the head of Taylor Glacier and west of Lashly Glacier, in Oates Land. Discovered by the Discovery expedition (1901–04) and named for William Lashly, a member of the party which explored this area.
This article incorporates public domain material from the United States Geological Survey document "Lashly Mountains" (content from the Geographic Names Information System).