The snow leopard (Panthera uncia) is a species of large cat in the genus Panthera of the family Felidae. It is native to the mountain ranges of Central and South Asia, ranging from eastern Afghanistan, the Himalayas and the Tibetan Plateau to southern Siberia, Mongolia and Western China. It inhabits alpine and subalpine zones at elevations of 3,000–4,500 m (9,800–14,800 ft), but also lives at lower elevations in the northern part of its range.
The snow leopard was long classified in the monotypic genus Uncia. Since phylogenetic studies revealed the relationships among Panthera species, it has been considered a member of that genus. Two subspecies were described based on morphological differences, but genetic differences between the two have not been confirmed. It is therefore regarded as a monotypic species. It forms a sister group with the tiger and the genetic divergence is estimated to have occurred 4.62 to 1.82 million years ago.