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Last name Olsson (Olson , Olsson , Ольссон ) , in the entire world, is a widespread surname. The surname Olsson is characteristic of Sweden, where it is a widespread surname, British Virgin Islands, where it is quite a common surname, and the United States (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in the United States, Sweden, and Canada. Much less frequently, Olsson is the forename as well as the last name.