Cognomen Piasecki (Piasecki 
, Пясецкий 
) , all around the world, is a common family name. The cognomen Piasecki is habitual in Poland, where it is quite a common surname, Belarus, where it is quite a rare surname, and Ireland, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Poland, the United States, and Russia. Likewise, Piasecki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piasecki | Germany, United Kingdom, United States, Poland, Brazil |
| Пясецкий | Kazakhstan, Russia, Ukraine, Belarus |
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paweł piasecki Roman Catholic bishop, PL (b. 1579) |
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| franciszek piasecki (b. 1739) |
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wojciech piasecki PL (b. 1803) |
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| jakub piasecki (b. 1794) |
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| marian piasecki (b. 1796) |
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| kazimierz piasecki LT (b. 1798) |
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eugeniusz piasecki Polish physician (1872-1947), PL (b. 1872) |
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| feliks piasecki social activist (b. 1833) |
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| wenanty piasecki AT (b. 1832) |
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zygmunt piasecki Polish officer, PL (b. 1893) |
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józef marian piasecki Polish physician, PL (b. 1894) |
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julian piasecki Major of the Polish Army, engineer, PL (b. 1896) |
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| franciszek piasecki (b. 1838) |
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stanisław piasecki Polish journalist (1900-1941), UA (b. 1900) |
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władysław piasecki Polish librarian (1901-1978), PL (b. 1901) |
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