Bjørnson is a Norwegian surname with the literal meaning "Son of Bjørn". Bjornson, Bjørnson, Bjørnsen, Björnsson and variations can refer to the following people:

Icelanders

• Ármann Smári Björnsson (born 1981), Icelandic footballer
• Björn Th. Björnsson (1922-2007), Icelandic writer
• Georgia Björnsson (1884–1957), Danish-born wife of Sveinn Björnsson, first president of Iceland
• Hafþór Júlíus Björnsson (born 1988), Icelandic strongman and actor
• Sveinn Björnsson (1881-1952), first president of Iceland
• Sveinn Birkir Björnsson (born 1976), editor of The Reykjavík Grapevine

Norwegians

• Bjørnstjerne Bjørnson (1832-1910), Norwegian writer and a 1903 Nobel Prize in Literature laureate
• Bjørn Bjørnson (1859-1942), Norwegian stage actor and theatre director, son of Bjørnstjerne Bjørnson
• Gudrød Bjørnsson, Norwegian politician in Middle Ages, grandfather of Saint Olaf
• Ivar Bjørnson (born 1977), Norwegian musician in Black Metal band Enslaved
• Øyvind Bjørnson, (1950–2007) was Norwegian historian

Swedes

• Erik Björnsson, 9th century semi-legendary Swedish king
• Johan Björnsson Printz, governor of New Sweden from 1643 to 1653
• Olof (II) Björnsson, 10th century semi-legendary Swedish king

Other nationalities

• Craig Bjornson (born 1969), American baseball coach
• David Bjornson (born 1947), Canadian politician
• Eric Bjornson (born 1971), American football player
• Karen Bjornson (born 1952), American model
• Maria Björnson (1949-2002), French theatre stage designer
• Mette Koefoed Bjørnsen (1920–2008), Danish author, conciliator and economist
• Oscar Bjornson (1906-1972), Canadian politician
• Peter Bjornson, Canadian politician
• Rosella Bjornson (born 1947), Canadian airline pilot
• Val Bjornson (1906-1987), American politician

See also

• Christina Bjornsdatter, queen of Sweden
• Selma Björnsdóttir, Icelandic singer