Equatorial Guinea, independent republic in western Africa, consisting of a mainland section called Mbini (formerly Río Muni) on the western coast and the coastal islets of Corisco, Elobey Grande, and Elobey Chico as well as the islands of Bioko (formerly Macías Nguema Biyogo and previously Fernando Póo), and Annobón (Pagalu) in the Gulf of Guinea. The total area of Equatorial Guinea is 28,051 sq km (10,831 sq mi).