 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (March 2020) |
| Poniatowski | |
|---|---|
 Princely arms of the Poniatowski family | |
| Country | Poland |
| Founded | 15th century |
| Final ruler | King Stanisław II August |
| Titles | King of Poland Grand Duke of Lithuania Grand Duke of Ruthenia Grand Duke of Prussia Grand Duke of Masovia Grand Duke of Samogitia Grand Duke of Kiev Prince of Bohemia[1] Prince of Monterotondo[2] |
| Estate(s) | Poland, Lithuania, Ukraine, Belarus |
| Deposition | 1795 |
| Cadet branches | Poniatowski di Monterotondo |
The House of Poniatowski (plural: Poniatowscy) is a prominent Polish family that was part of the nobility of Poland. A member of this family, Stanisław Poniatowski, was elected as King of Poland and reigned from 1764 until his abdication in 1795. Since Polish adjectives have different forms for the genders, Poniatowska is the equivalent name for a female member of this family.