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Cognomen Obinna (Obinna , Обинна , اوبينا) , all around the world, is a common surname. The family name Obinna is characteristic of Nigeria, where it is quite a common surname, Equatorial Guinea, where it is quite a rare surname, and Iceland. In absolute terms, it most frequently occurs in Sub-Saharan Africa, particularly Nigeria, Niger, and Ghana. Also, Obinna is the forename as well as the last name.