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Cognomen Aronsson (Aronsson ) , throughout the world, is quite a rare surname. The cognomen Aronsson is habitual in Northern Europe, particularly Sweden, where it is quite a common surname, Iceland, where it is quite a rare surname, and Latvia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Sweden, the United States, and Norway. Very seldom, Aronsson is the forename as well as the last name.