List of World Heritage Sites in Tanzania

The United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites are places of importance to cultural or natural heritage as described in the UNESCO World Heritage Convention, established in 1972. Cultural heritage consists of monuments (such as architectural works, monumental sculptures, or inscriptions), groups of buildings, and sites (including archaeological sites). Natural features (consisting of physical and biological formations), geological and physiographical formations (including habitats of threatened species of animals and plants), and natural sites which are important from the point of view of science, conservation, or natural beauty, are defined as natural heritage. The United Republic of Tanzania accepted the convention on 2 August 1977. There are seven World Heritage Sites in Tanzania, with a further six on the tentative list.

Ngorongoro Conservation Area, in 1979, was the first site in Tanzania to be added to the list. The most recent addition were the Kondoa Rock-Art Sites, in 2006. Three sites are listed for cultural significance, three for natural, and Ngorongoro for both. At different points, three sites have been listed as endangered. Ngorongoro was listed between 1984 and 1989 because of decline in conservation efforts. The Ruins of Kilwa Kisiwani and Songo Mnara were listed between 2004 and 2014 because of the deterioration and decay that led to collapse of historic structures. The Selous Game Reserve is currently listed, having been designated endangered in 2014 because of unplanned tourism development, uncontrolled urban development, pollution, invasive species, and reduced water flows because of droughts and hydroelectric dams upstream.

World Heritage Sites
UNESCO lists sites under ten criteria; each entry must meet at least one of the criteria. Criteria i through vi are cultural, and vii through x are natural.

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Tentative list
In addition to sites inscribed on the World Heritage List, member states can maintain a list of tentative sites that they may consider for nomination. Nominations for the World Heritage List are only accepted if the site was previously listed on the tentative list. Tanzania maintains six properties on its tentative list.