Lacrosse Island is an island in the Cambridge Gulf in the Kimberley region of Western Australia, it is located between Cape Domett on the eastern shore, and Cape Dussejour on the western. The island is in the local government Area of the Shire of Wyndham-East Kimberley.
During the Kimberley gold rush of the 1880s, a boat utilised Lacrosse Island as the staging point for the Bendigo Party to proceed to the Kimberley goldfield Due to tidal ranges in the approach to Cambridge Gulf, careful note of the Lacrosse tidal range is needed
In the 1920s visitors to the island sought out turtle eggs
Lacrosse Island is an important nesting area for the Flatback sea turtle
Coordinates: 14°45′00″S 128°18′50″E / 14.750°S 128.314°E