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Cognomen Карлссон (Karlsson , Carlsson , Карлссон ) , globally, is a widespread surname. The surname Карлссон is habitual in Northern Europe, particularly Sweden, where it is a prevalent surname, Iceland, where it is a common surname, and Finland (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Northern Europe, particularly Sweden, Finland, and Denmark. Very seldom, Карлссон is the forename as well as the last name.