Criteria: x

To contain the most important and significant natural habitats for in-situ conservation of biological diversity, including those containing threatened species of outstanding universal value from the point of view of science or conservation.

World Heritage Site Air and Ténéré Natural Reserves Niger 1991
World Heritage Site Aldabra Atoll Seychelles 1982
World Heritage Site Alejandro de Humboldt National Park Cuba 2001
World Heritage Site Amami-Oshima Island, Tokunoshima Island, Northern part of Okinawa Island, and Iriomote Island Japan 2021
World Heritage Site Ancient Maya City and Protected Tropical Forests of Calakmul, Campeche Mexico 2002
World Heritage Site Archipiélago de Revillagigedo Mexico 2016
World Heritage Site Area de Conservación Guanacaste Costa Rica 1999
World Heritage Site Atlantic Forest South-East Reserves Brazil 1999
World Heritage Site Banc d’Arguin National Park Mauritania 1989
World Heritage Site Belize Barrier Reef Reserve System Belize 1996
World Heritage Site Białowieża Forest Belarus 1979
World Heritage Site Blue and John Crow Mountains Jamaica 2015
World Heritage Site Brazilian Atlantic Islands: Fernando de Noronha and Atol das Rocas Reserves Brazil 2001
World Heritage Site Bwindi Impenetrable National Park Uganda 1994
World Heritage Site Canaima National Park Venezuela 1994
World Heritage Site Cape Floral Region Protected Areas South Africa 2004
World Heritage Site Central Amazon Conservation Complex Brazil 2000
World Heritage Site Central Highlands of Sri Lanka Sri Lanka 2010
World Heritage Site Central Sikhote-Alin Russia 2001
World Heritage Site Central Suriname Nature Reserve Suriname 2000