Mathilde Friederike Karoline Ludendorff (born Mathilde Spiess; 4 October 1877 in Wiesbaden – 24 June 1966 in Tutzing) was a German psychiatrist. Her third husband was General Erich Ludendorff. She was a leading figure in the Völkisch movement known for her esoteric and conspiratorial ideas. Together with Ludendorff, she founded the
She married a few more times after General Erich Ludendorff