Anna Sofia Sahlstén (1859-1931) was a Finnish painter, primarily known for portraits and genre scenes.
Her father, Clas Vilhelm Sahlstén (1826-1897), was a Chamber Counselor who later became a writer.
Her mother was Edla Elisabeth Heinricius.
When she was eight, her family moved to Helsinki, where she attended a Swedish girls' school; receiving her certificate in 1877.
She then studied at the Finnish Society Drawing School from 1877 to 1880, then at a private school operated by Adolf von Becker, from 1880 to 1882.