Stanislaw Niewiadomski
Stanisław Niewiadomski is the name of the following people:
- Stanisław Niewiadomski (Mayor) (1784–1837), Polish politician, Mayor of Kielce
- Stanisław Niewiadomski (composer) (1859–1936), Polish composer
- Stanisław Niewiadomski (writer) (1900–1990), Polish philologist and writer
- Stanisław Niewiadomski (architect) (1928–2008), Polish architect
