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Cognomen Doua (Doua ) , throughout the world, is quite a common surname. The last name Doua is characteristic of Ivory Coast, where it is quite a common surname, Mauritania, where it is quite a rare surname, and Tunisia. Not in comparison with a country's population, this name is the most popular in Ivory Coast, Algeria, and the Democratic Republic of the Congo. Also, Doua is the forename as well as the last name.