Leeuwin-Naturaliste National Park is a national park in the South West region of Western Australia, 267 km (166 mi) south of Perth. It is named after the two locations at either end of the park which have lighthouses, Cape Leeuwin and Cape Naturaliste. It is located in the Augusta-Margaret River and Busselton council areas, and is claimed to have the highest visiting numbers of any national park in Western Australia. The park received 2.33 million visitors through 2008–2009.

Cape Leeuwin is the most south-westerly mainland point of the Australian continent, in the state of Western Australia.