Family name Kornacki (Kornacki 
) , globally, is quite a rare last name. The family name Kornacki is characteristic of Poland, where it is quite a rare surname, the United States, where it is a rare surname, and Australia. Measured by absolute frequency, it is the most numerous in Poland, the United States, and Germany. Also, Kornacki is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kornacki | Canada, United States, Germany, Poland, France |
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jerzy kornacki PL (b. 1908) |
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| jan kornacki PL (b. 1866) |
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ryszard kornacki Polish writer, PL (b. 1940) |
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| stanisław kornacki PL (b. 1909) |
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jakub kornacki Polish actor, PL (b. 1974) |
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steve kornacki American political journalist, writer, and television host, US (b. 1979) |
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| alan s. kornacki American geologist (b. 1952) |
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| krzysztof kornacki PL (b. 1949) |
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| krzysztof kornacki Polish historian, PL (b. 1970) |
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| tomasz kornacki Polish speedway rider, PL (b. 1972) |
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| leanne kornacki Australian digital painter, AU (b. 1972) |
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| jacek kornacki PL (b. 1964) |
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| adam kornacki Polish racing driver and journalist (b. 1975) |
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| jakub kornacki researcher |
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| franciszek kornacki Polish Righteous Among the Nations, PL |
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