Mikołaj Hieronim Sieniawski (1645–1683) was a Polish noble (szlachcic), military leader and politician.
- Occupation
- military leader
- Position held
- Marshal of the Crown, field crown hetman, Volhynian Voivode, Q370477
- Citizenship
- Polish–Lithuanian Commonwealth
- Born
- 1645
- Died
- December 15, 1683