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Surname Sadiya (Sadiya , Садия ) , in the world, is a common cognomen. The family name Sadiya is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Ethiopia, where it is quite a rare surname, and Cameroon. Measured by absolute frequency, it most frequently occurs in Nigeria, Ethiopia, and India. Also, Sadiya is the forename as well as the last name.