The Great Sandy Strait is a strait in the Australian state of Queensland of 70 kilometres (43 mi) length which separates mainland Queensland from Fraser Island. It is also a locality in the Fraser Coast Region local government area. In the 2021 census, Great Sandy Strait had a population too low to be reported. To the north of the strait is Hervey Bay.

Fraser Island, officially K'gari, is a World Heritage-listed sand island along the south-eastern coast in the Wide Bay–Burnett region, Queensland, Australia. The island is approximately 250 km (160 mi) north of the state capital, Brisbane, and is within the Fraser Coast Region local government area. The world heritage listing includes the island, its surrounding waters and parts of the nearby mainland which make up the Great Sandy National Park. In the 2021 census, the island had a population of 152 people. Up to 500,000 people visit the island each year.