Jahnsson is a surname. Notable people with the surname include:
- Jean Jahnsson (1854–1944), Swedish jeweller, art collector and Consul General
- Kai Jahnsson (born 1965), Finnish sport shooter who competes in the men's 10 metre air pistol
- Sirkka Jahnsson or Sirkka Sari (1920–1939), Finnish actress
- Yrjö Jahnsson (1877–1936), Finnish economics professor at the University of Helsinki
See also
Surname listThis page lists people with the surname Jahnsson.If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link. Category: