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Last name Okba (Okba ) , around the world, is quite a common family name. The cognomen Okba is characteristic of Northern Africa, particularly Algeria, where it is quite a common surname, Tunisia, where it is quite a rare surname, and Egypt. Not in comparison with a country's population, it is commonest in Northern Africa, particularly Algeria, Egypt, and Morocco. More frequently, Okba is the forename as well as the last name.