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Cognomen Iko (Iko , Энрике , イコ ) , all over the world, is a common last name. The surname Iko is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, Papua New Guinea, and Morocco. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, Nigeria, and Indonesia. Likewise, Iko is the forename as well as the last name.