Karl Freiherr von Thüngen (26 June 1893 – 24 October 1944) was a German general in the Wehrmacht during World War II who was executed in 1944 after the failed 20 July Plot.

Escaping Soviet citizens were systematically handed over to the secret military police, who executed them as spies.

[8] On 20 July 1944, he was appointed by the conspirators as the commander of the defense group III (Berlin), succeeding the arrested General Joachim von Kortzfleisch.

[9] He did not follow the conspirators' orders and later took part in the interrogation of Major Hans-Ulrich von Oertzen, a supporter of the plot under his command.

He was tried under German military law and dismissed from the army by the court of honor and was then tried by the People's Court, sentenced to death by Roland Freisler on 5 October 1944 and shot by firing squad in Brandenburg-Görden Prison on 24 October 1944.