Nilsson

The origin of the surname Nilsson

Nilsson means “son of Nils,” a form of Nicholas.

What kind of surname is Nilsson?

As a patronymic surname, the surname Nilsson was formed from a father's or ancestor's personal name — the single largest way hereditary surnames arose across Europe. Before family names became fixed, a man was often known as the son of his father (for example “John, son of Robert”), and over generations that link hardened into an inherited surname. Different cultures marked the relationship differently: English and Scandinavian names added “-son”, Irish and Scottish used “Mac” or “O’”, Slavic languages added “-ov”, “-ev” or “-vich”, and many languages simply reused the father's name unchanged. A patronymic surname therefore points back to a founding ancestor rather than a place or an occupation.

How Scandinavian surnames work

Scandinavian surnames were historically patronymic, formed with “-son”/“-sen” (“son of”) and “-dóttir” (“daughter of”). Iceland still uses true patronymics, so a person's last name changes each generation and there are few fixed family names; Sweden, Norway and Denmark froze their “-sson/-sen” names as hereditary surnames in the nineteenth century, and Sweden also adopted many nature-compound names such as Lindberg and Bergström.