Olsen

Olsen is a surname of Scandinavian origin, most common in Denmark and Norway. It is a patronymic name meaning “son of Ole,” with Ole a form of Olaf. The Danish spelling is Olsen, while Norwegian usage also yields Olsen; related forms in other languages include Olson and Olsson.

Distribution and usage: The name is widespread among people of Nordic descent. In Denmark and Norway it is a standard family name, and in North America it appears across communities with Danish, Norwegian, or Icelandic ancestry due to migration and settlement.

Notable people: The best-known bearers are Mary-Kate Olsen and Ashley Olsen, American actresses who gained fame as the Olsen Twins. The surname is shared by many others in politics, science, arts, and sports.

Other uses: Olsen appears as a place name in various countries and may appear in the names of institutions, businesses, or landmarks associated with individuals bearing the surname.