The Purnululu National Park is a World Heritage Site in the East Kimberley region of Western Australia. The 239,723-hectare (592,370-acre) national park is located approximately 300 kilometres (190 mi) south of Kununurra, with Halls Creek located to the south. Declared a World Heritage Site in 2003, the park was inscribed as follows:

The World Heritage status of the region was created and negotiated in 2003, and the adopted boundary of the existing national park. Since its listing, the Government of Western Australia has reserved additional areas located adjacent to the World Heritage Area, including the Purnululu Conservation Park and the Ord River Regeneration Reserve. The site was gazetted on the Australian National Heritage List on 21 May 2007 under the Environment and Heritage Legislation Amendment Act (No. 1), 2003 (Cth).

Purnululu is a mispronounced Djaru word for the area around Bungle Bungle out camp, which is referred to as Bullmanlulu. The correct Karjaganujaru name for the Bungle Bungle massif is Billingjal which means sand falling away.