Topi (Damaliscus korrigum) are a highly social and fast antelope species of the genus Damaliscus. The species is to be found in the savannas, semi-deserts, and floodplains of sub-Saharan Africa.
Topi resemble hartebeest but have a darker coloration and lack sharply angled horns. They have elongated heads, a distinct hump at the base of the neck, and reddish brown bodies with dark purple patchings on their upper legs. They also have a mask-like dark coloration on the face. Their horns are ringed and lyrate shaped. Their coats are made of short, shiny hairs. They range in mass from 150 to 353 lb. They are a tall species, ranging in height from 39 to 51 in at the shoulder. Males tend to be larger and darker than females. Topi also have preorbital glands that secrete clear oil and the front legs have hoof glands. When pressed they have been known to reach speeds in excess of 50 mph although they typically travel at a jog. They are one of the fastest antelopes in Africa.