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Family name Olusola (Olusola ) , worldwide, is a widespread surname. The last name Olusola is habitual in Nigeria, where it is quite a common surname, Iceland, where it is quite a rare surname, and Niger. Not in comparison with a country's population, it is commonest in Sub-Saharan Africa, particularly Nigeria, Niger, and Ghana. Likewise, Olusola is the forename as well as the last name.