Nilsson

Nilsson is a Swedish-origin surname, a patronymic meaning "son of Nils," with Nils being the Swedish form of Nicholas. The spelling Nilsson (with double s) is the standard in Sweden, while variants such as Nilson and Nilsen are also found, reflecting Norwegian or Anglicized forms.

The name is especially common in Sweden and is present in other Nordic countries and in regions with significant Swedish or Nordic diaspora, including North America. In English-speaking contexts the name may be rendered as Nilson.

Notable people bearing the surname include Harry Nilsson (1941–1994), an American singer-songwriter known for songs like "One" and the album Nilsson Schmilsson; and Nils J. Nilsson (1932–2019), a Swedish-American computer scientist and pioneer in artificial intelligence at Stanford University. The surname appears across various fields, reflecting its broad Scandinavian heritage and diaspora.