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Surname Olayinka (Olayinka
, Олайинка) , across the world, is a widespread family name. The surname Olayinka is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Niger, and Lesotho, where it is quite a rare surname. In absolute terms, the name is most common in Nigeria, Niger, and the United States. Likewise, Olayinka is the forename as well as the last name.