Udzungwa Mountains National Park is a national park in Tanzania with a size of 1,990 km². The park established in 1992 by the WWF founder then president Prince Bernard of Netherlands.
The name Udzungwa comes from the Kihehe word "Wadzungwa" which means the people who live on the sides of the mountains. The vast areas of the Udzungwa Mountains are still pristine, where man has not disturbed the earth and its natural communities due to taboos and cultural beliefs.
The habitats contained within the national park include tropical rainforest, mountain forest, miombo woodland, grassland and steppe. There is a vertical height range of 250–2,576 metres, which incorporates the Udzungwa Mountains part of the Eastern Arc Mountains. There are more than 400 bird species, 2500 plant species and 6 primate species. It has the second largest biodiversity of a national park in Africa. Six primate species have been recorded, five of which are endemic. The Iringa red colobus and Sanje crested mangabey are only found in the Udzungwa Mountains National Park, the mangabey species was undetected by biologists prior to 1979.