Marie Henning (born Maria Mahnke: 26 December 1895 - 5 January 1948) was a German activist and politician (KPD).
After her husband was murdered in 1931 the party nominated her to seek election to the Hamburg Parliament ("Hamburgische Bürgerschaft") in his place.
She was successful, and sat as a member of the Hamburg Parliament from September 1931 until democratic institutions were withdrawn during the early summer of 1933.