Graf Gustav Ernst von Stackelberg was a Russian diplomat of Baltic-German descent. He was the son of Otto Magnus von Stackelberg. By birth, he was member of the House of Stackelberg.
- Occupation
- diplomat, land owner, politician, military personnel
- Position held
- ambassador of the Russian Empire
- Citizenship
- Russian Empire
- Born
- June 5, 1766
- Died
- April 18, 1850, April 6, 1850