The common tsessebe or sassaby is one of five species of the subfamily Alcelaphinae in the family Bovidae. It is most closely related to the topi and the bontebok in the same genus. Tsessebe are found primarily in Angola, Zambia, Namibia, Botswana, Zimbabwe, Swaziland, and South Africa. They used to be spread throughout a significant area of Africa, from Senegal to eastern Ethiopia south to the northern areas of South Africa. Tsessebe can run at a maximum of 80 km/h.