Helmuth von Pannwitz (14 October 1898 – 16 January 1947) was a German general who was a cavalry officer during the First and the Second World Wars. Later he became a Lieutenant General of the Wehrmacht, a SS-Obergruppenführer of the Waffen-SS, and Feldataman of the XV SS Cossack Cavalry Corps. In 1947 he was tried for war crimes under Ukase 43 by the Military Collegium of the Supreme Court of the Soviet Union, sentenced to death on 16 January 1947 and executed in Lefortovo Prison the same day. He was rehabilitated by a military prosecutor in Moscow in April 1996. In June 2001, however, the reversal of the conviction of Pannwitz was overturned and his conviction was reinstated.