Sieniawski
Sieniawski is a Polish surname, it may refer to:
- Adam Hieronim Sieniawski, Polish–Lithuanian noble
- Adam Hieronim Sieniawski, Polish noble, starost of Lwów since 1648, Field Clerk of the Crown since 1649
- Adam Mikołaj Sieniawski, Polish noble, military leader
- Hieronim Jarosz Sieniawski, Polish noble
- Mikołaj Hieronim Sieniawski, Polish noble, military leader, politician
- Mikołaj Sieniawski, notable Polish magnate, military commander and politician
- Prokop Sieniawski, Polish noble