Eustachy
Eustachy is a given name. Notable people with the name include:
- Eustachy Erazm Sanguszko, Polish general and politician
- Eustachy Sapieha, Polish nobleman, prince, politician, Minister of Foreign Affairs and deputy to the Polish parliament
- Eustachy [Stanisław Sanguszko], Polish noble, conservative politician
- Eustachy Tyszkiewicz, Polish–Lithuanian noble, archaeologist and historian from the former Grand Duchy of Lithuania
- Larry Eustachy, former NCAA Men's Basketball coach