Mkomazi National Park, Wildlife reserve in northern Tanzania

Mkomazi National Park covers over 3,234 km2 in Same District of Kilimanjaro Region and Lushoto District of Tanga Region, with a small part in Mkinga District. It is dominated by Acacia-Commiphora vegetation and is contiguous with Kenya's Tsavo West National Park. The area called Mkomazi unites the former Umba Game Reserve in the east with the larger Mkomazi Game Reserve in the west, which has more varied relief and habitat.

The area was established as a game reserve in 1951 and became a national park in 2006 following years of conservation efforts. This change marked a turning point for protecting endangered species in the region.

The area called Mkomazi combines two former reserves, Umba in the east and Mkomazi in the west, sometimes listed in government papers as the Mkomazi-Umba Game Reserves. Parakuyo pastoral families were allowed to stay with their herds in the eastern half when the reserve was created, while immigrant Maasai and other groups were evicted. Herders were removed entirely by July 1988, and the evicted Maasai and Parakuyo lost their court claim of customary rights.

Mkomazi lies in Same District of Kilimanjaro Region and Lushoto District of Tanga Region, with a small part in Mkinga District. The park borders Kenya's Tsavo West National Park, so the two protected areas form one continuous landscape across the frontier. Access is by road from Moshi or from the Tanga side; the reserve's own roads were regraded and dams dredged under the restoration programme.

Mkomazi's black rhino sanctuary was set up by the George Adamson Wildlife Preservation Trust and its American sister charity, the Tony Fitzjohn, George Adamson African Wildlife Preservation Trust, after herders were evicted in 1988. The same charities run a fenced sanctuary for African wild dogs and support local schools through an outreach programme.