Baron Pyotr Ivanovich Meller-Zakomelsky was a Russian military leader and General of Artillery (1814) who served as Minister of War of the Russian Empire from 1819 to 1823.
- Occupation
- military personnel
- Position held
- member of the State Council of the Russian Empire
- Citizenship
- Russian Empire
- Born
- October 28, 1755
- Died
- June 9, 1823