Kazimierz Leon Sapieha (1609–1656) was a nobleman of the Grand Duchy of Lithuania, a part of the Polish–Lithuanian Commonwealth.
- Occupation
- politician
- Position held
- Q27048068, Mayor of Słonim, Deputy to the Sejm of the Polish–Lithuanian Commonwealth, king's secretary at the Polish court
- Citizenship
- Polish–Lithuanian Commonwealth
- Born
- July 15, 1609, 1609
- Died
- January 19, 1656, 1656