Bjornson, Bjørnson, Bjørnsen, Björnsson and variations can refer to the following people:
IcelandersÁrmann Smári Björnsson, Icelandic footballer (soccer player)Björn Th. Björnsson, Icelandic writerGeorgia Björnsson (1884–1957), Danish-born wife of Sveinn Björnsson, first president of IcelandSveinn Björnsson, first president of IcelandSveinn Birkir Björnsson (born 1976), editor of The Reykjavík GrapevineNorwegiansBjørnstjerne Bjørnson, Norwegian writer and a 1903 Nobel Prize in Literature laureateBjørn Bjørnson, Norwegian stage actor and theatre director, son of Bjørnstjerne BjørnsonGudrød Bjørnsson, Norwegian politician in Middle Ages, grandfather of Saint OlafIvar Bjørnson, Norwegian musician in Black Metal band EnslavedØyvind Bjørnson, (1950–2007) was a Norwegian historianSwedesErik Björnsson, 9th century semi-legendary Swedish kingJohan Björnsson Printz, governor of New Sweden from 1643 to 1653Olof (II) Björnsson, 10th century semi-legendary Swedish kingOther nationalitiesDavid Bjornson, Canadian politicianEric Bjornson (born 1971), American professional football tight endMaria Björnson, French theatre stage designerOscar Bjornson, Canadian politicianPeter Bjornson, Canadian politicianRosella Bjornson, Canadian airline pilotVal Bjornson, American politician