The mountain tapir or woolly tapir (Tapirus pinchaque) is the smallest of the four species of tapir and is the only one to live outside of tropical rainforests in the wild. It is most easily distinguished from other tapirs by its thick woolly coat and white lips.

The species name comes from the term "La Pinchaque", an imaginary beast said to inhabit the same regions as the mountain tapir.

Mountain tapirs are black or very dark brown in color, with occasional pale hairs flecked in amongst the darker fur. The fur becomes noticeably paler on the underside, around the anal region, and on the cheeks. A distinct white band runs around the lips, although it may vary in extent, and there are usually also white bands along the upper surface of the ears. In adults, the rump has paired patches of bare skin, which may help to indicate sexual maturity. The eyes are initially blue, but change to a pale brown as the animal ages. Unlike all other species of tapir, the fur is long and woolly, especially on the underside and flanks, reaching 3.5 centimetres (1.4 in) or more in some individuals.