Anna Sofia Sahlstén (22 September 1859, Iisalmi – 21 August 1931, Helsinki) was a Finnish painter; primarily known for portraits and genre scenes.

[1][2] Her father, Clas Vilhelm Sahlstén (1826–1897), was a Chamber Counselor [sv] who later became a writer.

When she was eight, her family moved to Helsinki, where she attended a Swedish girls' school; receiving her certificate in 1877.

[2][3] She began teaching at the age of twenty-one and worked as a secondary school drawing teacher from 1882 to 1926.

After she retired from teaching, she wrote a two-act for children called Paimen-Pertti ja prinsessa Priscilla.