Hans von Herwarth
- Category : 1904-births
- Type : MEG
- Profile : 1/3 - Investigating / Martyr
- Definition : Single
- Incarnation Cross : RAX Maya 2
German diplomat who provided the Allies with information prior to and during the Second World War. He was also known as Johnnie or Johann von Herwarth. He was by marriage a cousin of Claus von Stauffenberg, and belonged to the aristocratic opposition against the Nazi regime.
In 1927 he entered the German Foreign Office (Auswaertiges Amt) and was first stationed in Paris. He was stationed in Moscow 1931–1939, where he met George F. Kennan, Charles W. Thayer and Charles E. Bohlen. After 1939, he worked at the German Army Headquarters (OKW), in the Abwehr department.
From 1945 onward, Herwarth worked for the new German government, first in Munich, then in Bonn. In 1955, he became the first post-war German ambassador in London. In 1961, he was head of Bundespräsidialamt (the office of the Federal President); later he became ambassador to Rome. From 1971–1977 he was president of the Goethe-Institut, responsible for cultural relations.
Herwarth's first wife was the German ski racer Annemarie Herwarth von Bittenfeld-Honigmann. In 1936 he married Elisabeth von Redwitz, and they had a daughter Alexandra. Herwarth died in Küps on 21 August 1999 at age 95.