Anthony Island (Haida: SG̱ang Gwaay) is an island located in the southernmost Queen Charlotte Islands of the North Coast of British Columbia, Canada, to the west of Kunghit Island, the archipelago's southernmost. Anthony Island is noted for being the location of the ruins of SkungWai or SG̱ang Gwaay Llnaagay, commonly called Ninstints after the reigning mid-19th Century chief there. SG̱ang Gwaay Llnagaay was a major village of the Kunghit Haida people.