Janson is a Scandinavian patronymic surname, meaning "son of Jan", derived from Johannes. There are alternate Belgian, Dutch, Danish, Latvian, Norwegian and Swedish spellings. Janson is uncommon as a given name. People with the name Janson or its variants include:
Anton Janson (1620–1687), Dutch printer and typographer after whom the font "Janson" is namedCharles Auguste Marie Joseph, Comte de Forbin-Janson (1785–1844), French Bishop of Nancy and Toul, and founder of the Association of the Holy ChildhoodCiara Janson (born 1987), English actressDavid Janson (born 1950), English actor and father of Ciara JansonErnest A. Janson (1878–1930), highly decorated United States Marine of World War IH. W. Janson (1913–1982), American art historianHorst Janson (actor), German film and television actorKlaus Janson (born 1952), American comic book artistMarie Janson (1873–1960), Belgian politician and first woman to serve in the Belgian Senate; sister of Paul-Émile JansonOscar Janson (born 1975), Swedish athletePaul Janson (1840–1913), Belgian liberal politician; father of Paul-Émile Janson and Marie JansonPaul-Émile Janson (1872–1944), Belgian liberal politician, brother of Marie JansonSvante Janson, Swedish mathematicianAlternate spellingMariss Jansons (born 1943), Latvian conductor