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Cognomen Hamidou (Hamidou , حميدو , Амиду) , all over the world, is a common last name. The cognomen Hamidou is habitual in Cameroon, where it is quite a common surname, Niger, and Algeria (explore the name in all countries). In absolute terms, it is the most numerous in Cameroon, Egypt, and Algeria. Likewise, Hamidou is the forename as well as the last name.