The oribi is a small antelope found in eastern, southern and western Africa. The sole member of its genus, it was described by the German zoologist Eberhard August Wilhelm von Zimmermann in 1783. While this is the only member in the genus Ourebia, eight subspecies are identified.
The oribi is a small, slender antelope; it reaches nearly 50–67 centimeters (20–26 in) at the shoulder and weighs 12–22 kilograms (26–49 lb). The head-and-body length is typically between 92 and 110 centimeters (36 and 43 in). Sexually dimorphic, males are slightly smaller than females (except for O. o. oribi, in which females are smaller). This antelope features a slightly raised back, and long neck and limbs. The glossy, yellowish to rufous brown coat contrasts with the white chin, throat, underparts and rump. The bushy tail, brown to black on the outside, has white insides. Commonly found in Murchison Falls National Park, Lake Mburo National Park, Kidepo Valley National Park, and Queen Elizabeth National Park.