Dauan Island is an island in the Torres Strait, Queensland, Australia; it is also known as Cornwallis Island. Dauan Island is also a town and locality in the Torres Strait Island Region, Queensland, Australia.

Kalau Lagau Ya, Kalaw Lagaw Ya, Kala Lagaw Ya, or the Western Torres Strait language is the language indigenous to the central and western Torres Strait Islands, Queensland, Australia. On some islands, it has now largely been replaced by Torres Strait Creole.