Shetland pony, smallest breed of horse, originating in the Shetland Islands some 200 mi (322 km) N of Scotland. The Shetland resembles a miniature draft horse and has long been used for working purposes. The most popular of the ponies, it has a gentle disposition and is therefore a favorite mount for children. Its official size is less than 46 in. (117 cm) high, and some Shetlands are scarcely more than 2 ft (61 cm). The coat is characteristically long and shaggy and may be any color, although many Shetlands have irregular dark and white patches.