Family name Kouadio (Kouadio ) , across the world, is a widespread surname. The cognomen Kouadio is habitual in Sub-Saharan Africa, particularly Ivory Coast, where it is a widespread surname, Senegal, where it is quite a rare surname, and Gabon. Not in comparison with a country's population, it is the most numerous in Ivory Coast, France, and Senegal. Likewise, Kouadio is the forename as well as the last name.