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Surname Sadio (Sadio , Садио, Тункара ) , in the entire world, is a common cognomen. The family name Sadio is characteristic of Sub-Saharan Africa, particularly Senegal, where it is quite a common surname, Mauritania, where it is quite a rare surname, and Gabon. Not in comparison with a country's population, it is the most numerous in Senegal, Philippines, and Cameroon. Likewise, Sadio is the forename as well as the last name.