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Family name Carlsson (Carlsson , カールソン , Карлссон ) , in the world, is a common surname. The surname Carlsson is characteristic of Sweden, where it is a common surname, Seychelles, where it is quite a common surname, and Denmark (explore the name in all countries). Measured by absolute frequency, it is commonest in Northern Europe, particularly Sweden, Denmark, and Norway. Very seldom, Carlsson is the forename as well as the last name.