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Cognomen Grema (Grema ) , throughout the world, is quite a common family name. The family name Grema is habitual in Nigeria, where it is quite a rare surname, Libya, and Cameroon, where it is a rare surname. Not in comparison with a country's population, the name is most common in Sub-Saharan Africa, particularly Nigeria, Cameroon, and Niger. Also, Grema is the forename as well as the last name.