Johanna "Hanna" Kirchner (née Johanna Stunz; 24 April 1889 – 9 June 1944) was a German opponent of the Nazi régime. Johanna Stunz came from a social-democratic family from Frankfurt, Hesse-Nassau. Her grandfather was one of Frankfurt's first social-democratic aldermen. At 14, she joined the Socialist Worker Youth, and at 18 became a member of the Social Democratic Party of Germany (Sozialdemokratische Partei Deutschlands – SPD). She worked avidly in the women's movement. In Frankfurt, she became friends with Eleonore Wolf, whose life was taking a similar path.