Thorfinn (Þorfinnr) is a Scandinavian name, which originally referred to the god Thor and which survived into Christian times. Notable people with the name include:
- Thorfinn Torf-Einarsson (died c. 963), Earl of Orkney
- Thorfinn Karlsefni (fl. 1010), Icelandic explorer
- Thorfinn the Mighty or Thorfinn Sigurdsson (1009?–c. 1065), Earl of Orkney
- Thorfinn of Hamar (died 1285), Christian bishop and saint
- Thorfinn (Vinland Saga), a fictional character from the manga series Vinland Saga
See also
edit- Torfinn, a related modern name
- Thorfinnsson
- Earl Thorfinn (disambiguation)