Billiatt Conservation Park, formerly the Billiatt National Park, is a protected area in the Australian state of South Australia located in the locality of Sandalwood about 200 kilometres (120 mi) east of the state capital of Adelaide.

[1] The conservation park occupies a parcel of land known as ‘Allotment 101 of Deposited Plan 51151’ in the cadastral unit of the Hundred of Auld in the locality of Sandalwood.

Ridge-fruited and red-tipped slender leaf mallees add colour to the dunes with broombush growing in the mottled shade.

[16][17] In 1980, when the conservation park's area was 368.14 square kilometres (142.14 sq mi), it was listed on the now-defunct Register of the National Estate.

[19] Billiatt Conservation Park is part of an area of land considered by BirdLife International to be an Important Bird Area because it contains small but globally important populations of malleefowl, mallee emu-wren and purple-gaped honeyeater, as well as the rare western whipbird and red-lored whistler.