Hermann Karl von Keyserling
| Hermann Karl von Keyserling | |
|---|---|
Portrait by Michael Christoph Hagelgans | |
| Born | 1695 Blīdene manor, Duchy of Courland and Semigallia |
| Died | 30 September 1764 (aged 68–69) Warsaw, Polish–Lithuanian Commonwealth |
| Father | Otto Ernst von Keyserling |
| Mother | Anna Sibilla von Manteuffel-Szoege |
Count Hermann Karl von Keyserling (Russian: Герман Карл фон Кейзерлинг, romanized: German Karl fon Keyzerling; 1697 – 30 September 1764) was a Russian diplomat from the Keyserlingk family of Baltic German nobility based in the Duchy of Courland and Semigallia.