安蒂科斯蒂岛是加拿大的岛屿，位于圣罗伦斯湾，由魁北克省负责管辖，长217公里、宽48公里，面积7,892.5平方公里，最高点海拔高度312米，2006年人口281。

Anticosti Island (French, Île d'Anticosti) is an island in the province of Quebec, Canada at the outlet of the Saint Lawrence River into the Gulf of Saint Lawrence, between 49° and 50° N., and between 61° 40' and 64° 30' W. At 7,892.52 km (3,047.32 sq mi) in size, it is the 90th largest island in the world and 20th largest island in Canada. Anticosti Island is separated on the north from the Côte-Nord region of Quebec (the Labrador Peninsula) by the Jacques Cartier Strait, and on the south from the Gaspé Peninsula by the Honguedo Strait.