Mkomazi National Park is located in North Eastern Tanzania on the Kenyan Border. It was established in 1951 and is found in Kilimanjaro Region and Tanga Region.

The Reserve covers over 3,200 km² and is dominated by Acacia-Commiphora vegetation; it is contiguous with Kenya’s Tsavo East National Park. The area commonly called ‘Mkomazi’ is actually the union of two Game Reserves, the Umba Game Reserve in the east (in Lushoto District, Tanga Region) and the Mkomazi Game Reserve in the West (in Same District, Kilimanjaro Region); in government documents they are sometimes called the Mkomazi/Umba Game Reserves. Of the two, Mkomazi is larger, and has more diversity of relief and habitat, and a longer shared border with Tsavo East National Park. In the rest of this entry ‘Mkomazi’ will refer to both the Mkomazi and Umba Reserves together.