| Konstancja Czartoryska | |
|---|---|
| Born |
29 January 1696 Warsaw, Poland |
| Died | 27 October 1759 (aged 63) unknown |
| Noble family | Czartoryski |
| Spouse(s) | Stanisław Poniatowski |
| Issue | |
| Father | Kazimierz Czartoryski |
| Mother | Izabela Elżbieta Morsztyn |
Princess Konstancja Czartoryska (ca. 1696 or 29 January 1700 – 27 October 1759) was a Polish noble lady, the daughter of magnate Kazimierz Czartoryski.
She married Stanisław Poniatowski on 14 September 1720 and was the mother of the last Polish king Stanisław August Poniatowski.