Anna Stang (May 18, 1834 – December 23, 1901), née Anna Sophie Margrethe Holmsen, was a Norwegian feminist, liberal politician and the second President of the Norwegian Association for Women's Rights, serving from 1885 to 1886. She also ran a private school in Kongsvinger for 17 years. She was married to Norwegian Prime Minister Jacob Stang, and was therefore addressed as "Madam Prime Minister" (Norwegian: Statsministerinde) during her lifetime. She was the mother of Minister of Defence Georg Stang.