Dunk is an island group locality consisting of the Family Islands in the Coral Sea within the Cassowary Coast Region, Queensland, Australia. In the 2021 census, Dunk had a population of 23 people.

The named islands within the locality include (from north to south):

Many of the islands are entirely within the Family Islands National Park (from north to south): Mound, Dunk (partially), Mung Um Gnackum, Kumboola, Wolngarin, Pee Rahm Ah Island, Wheeler, Smith, Coombe, Bowden and Hudson.

The locality presumably takes its name from the largest island, Dunk Island.

HMS Paluma arrived in Brisbane on 7 May 1885. Construction cost 35,000 pounds sterling. The ship's name was the Aboriginal word for "thunder". Over the next eight years, Paluma conducted survey work on the Great Barrier Reef for the Admiralty. The European names of many of the islands reflect the names of the officers on the Paluma: Lieutenant G. Richards, commander; Lieutenants Wheeler, Combe and Bowden-Smith; Dr. Thorpe, surgeon, and Mr. Hudson, engineer.

In the 2016 census, Dunk had a population of 21 people.

In the 2021 census, Dunk had a population of 23 people.

There are no schools in Dunk. The alternatives are distance education and boarding school.