French West Africa was a federation of eight French colonial territories in West Africa: Mauritania, Senegal, French Sudan, French Guinea, Ivory Coast, Upper Volta, Dahomey and Niger. The federation existed from 1895 until 1958. Its capital was Saint-Louis in Senegal until 1902, and then Dakar until the federation's collapse in 1960.

West Africa or Western Africa is the westernmost region of Africa. The United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, and Togo, as well as Saint Helena, Ascension and Tristan da Cunha. The population of West Africa is estimated at 419 million people as of 2021, and at 381,981,000 as of 2017, of which 189,672,000 were female and 192,309,000 male. The region is demographically and economically one of the fastest growing on the African continent.