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Cognomen Ayeni (Ayeni ) , around the globe, is a common last name. The surname Ayeni is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Niger, where it is quite a rare surname, and Benin. Measured by absolute frequency, it most frequently occurs in Nigeria, Niger, and the United States. Also, Ayeni is the forename as well as the last name.