Kristín Jónsdóttir, also Kristín Jónsdóttir Stefánsson, (1888–1959) was a pioneering female Icelandic painter. A member of the group of artists who associated with the painter Jón Stefánsson, she was inspired by the art of Paul Cézanne and by French Impressionism.
Born on 25 January 1888 in Arnanes on the Eyjafjörður in northern Iceland, she was the daughter of the shipbuilder Jón Antonsson and Guðlaug Helga Sveinsdóttir. After schooling in Reykjavik, she studied art in Copenhagen, first from 1909 at the Tegne- og Kunstindustriskolen for Kvinder (Women’s Art College), then at the Royal Danish Academy of Fine Arts under Valdemar Irminger and Peter Rostrup Bøyesen. In 1916, she became the first Icelandic woman to graduate from the Academy.