Great Australian Bight Marine Park Whale Sanctuary was a marine protected area in the Australian state of South Australia located immediately off the coastline of the Great Australian Bight in waters about 790 km (491 mi) west-northwest of the state capital of Adelaide.

It extended from 130 degrees 45.5 minutes east at its western boundary to 131 degrees 30 minutes east at its eastern boundary, and from the coastline for a distance of 3 nautical miles (5.6 km; 3.5 mi).

[3] It was bounded by the Great Australian Bight Marine National Park to its immediate west and east and its extent included the bay known as the Head of Bight.

[5] The whale sanctuary was originally proclaimed as a marine park under the Fisheries Act 1982 (SA) by the South Australian Government on 22 June 1995 to protect waters used by Southern right whales for breeding and calving.

[7] The whale sanctuary was classified as an IUCN Category Ia protected area.