Family name Poniatowski (Poniatowski 
, Понятовский 
, פוניאטובסקי 
) , around the world, is quite a rare cognomen. The family name Poniatowski is characteristic of Luxembourg, where it is quite a rare surname, Poland, and Belarus. Not in comparison with a country's population, it most frequently occurs in Poland, the United States, and Russia. Likewise, Poniatowski is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Poniatowski | Germany, United States, Poland, Canada, France |
| Понятовский | Kazakhstan, Russia, Belarus |
| פוניאטובסקי | Israel |
| julian poniatowski Poln. Adliger; zunächst katholischer Mönch, später Prediger der Böhmischen Brüder; Bibliothekar des Freiherrn Karl d. Ä. von Zierotin (b. 1550) |
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stanisław poniatowski Castellan of Kraków (1676-1762), PL (b. 1676) |
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| franciszek poniatowski (b. 1651) |
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kazimierz poniatowski Polish noble (1721-1800), PL (b. 1721) |
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| józef poniatowski (-1739) (b. 1674) |
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stanisław august poniatowski King of Poland and Grand Duke of Lithuania, RU (b. 1732) |
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andreas fürst poniatowski Polish noble, AT (b. 1735) |
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michał jerzy poniatowski Catholic archbishop, PL (b. 1736) |
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stanisław poniatowski Polish noble (1754-1833), PL (b. 1754) |
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józef antoni poniatowski nephew of King of Poland Stanislaus II; Marshal of France (1763-1813), FR (b. 1763) |
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| franciszek poniatowski (b. 1723) |
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| aleksander poniatowski (b. 1725) |
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joseph poniatowski Polish szlachcic, composer and operatic tenor (1916-1873), FR (b. 1796) |
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| dionizy poniatowski Polish general (b. 1750) |
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| józef poniatowski (1762-1845), UA (b. 1762) |
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