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Cognomen Pettersson (Pettersson , Петерсон , Петтерссон ) , globally, is a common family name. The last name Pettersson is habitual in Northern Europe, particularly Sweden, where it is a common surname, Finland, where it is quite a common surname, and Norway (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Sweden, Finland, and Russia. Much less frequently, Pettersson is the forename as well as the last name.