Côte dIvoire kōt dēvwär´ [key] or Ivory Coast, officially Republic of Côte dIvoire, republic (2005 est. pop. 17,298,000), 124,503 sq mi (322,463 sq km), W Africa, on the Gulf of Guinea of the Atlantic Ocean. It is bordered by Liberia and Guinea on the west, by Mali and Burkina Faso on the