The Cartier Island Marine Park (previously known as the Cartier Island Marine Reserve) is an Australian marine park that covers the Cartier Island and reef surrounds, about 610 km (380 mi) north of Broome, Western Australia.

The marine park covers an area of 172 km2 (66 sq mi) and is assigned IUCN category Ia (Sanctuary Zone).

[3][4] While access has been restricted to the marine park for environmental protective measures, there is also a risk of unexploded ordnance as the area has previously been used for defence practise.

[5] The Marine Park was originally proclaimed under the National Parks and Wildlife Conservation Act 1975 on 21 June 2000 as the Cartier Island Marine Reserve, and proclaimed under the EPBC Act on 14 December 2013 and renamed Cartier Island Marine Park on 9 October 2017.

[3] The following table is a summary of the zoning rules within the Cartier Island Marine Park:[3]