Prince Michał Józef Masalski was a Polish–Lithuanian nobleman (szlachcic).
- Occupation
- diplomat
- Position held
- Great Hetman of Lithuania, field lithuanian hetman, Q3646466, Castellan of Vilnius
- Citizenship
- Polish–Lithuanian Commonwealth
- Born
- 1697, 1699
- Died
- January 26, 1768, January 20, 1768