Terrible Mountain or Mount Terrible may refer to:
Terrible Mountain (Colorado) Terrible Mountain (Vermont) Mount Terrible (New South Wales), a mountain within the Great Dividing Range, in the Snowy Mountains region of New South Wales, Australia Mount Terrible (Victoria), a mountain within the Great Dividing Range, Victoria, Australia
See also Mont Terri, Switzerland, known as Mont Terrible during Napoleonic times Mont-Terrible, a department of Napoleonic France, named after the mountain