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Surname Dekou (Dekou ) , in all the world, is quite a rare family name. The family name Dekou is habitual in Cameroon, where it is quite a rare surname, the Democratic Republic of the Congo, where it is a rare surname, and Greece, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Cameroon, and Nigeria. Much less frequently, Dekou is the forename as well as the last name.