Cognomen Rzeźniczak (Rzeźniczak 
, Жезничак) , worldwide, is a rare surname. The cognomen Rzeźniczak is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
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| Rzeźniczak | Poland |
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andrzej rzeźniczak Polish politician, PL (b. 1947) |
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| franciszek rzeźniczak PL (b. 1914) |
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jakub rzeźniczak Polish footballer, PL (b. 1986) |
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mateusz rzeźniczak Polish athlete, runner (b. 1998) |
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| stanisław rzeźniczak Polish sportsperson and athletics competitor, PL (b. 1954) |
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| zenon rzeźniczak politician, PL (b. 1957) |
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| janusz rzeźniczak researcher |
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| mateusz rzeźniczak Polish actor, PL (b. 1992) |
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Ania, Tomasz, Mateusz, Maurycy, Michał, Andrzej, Barbara, Klaudia, Justyna, Natalia, Karolina, Magdalena, Sebastian, Agnieszka, Katarzyna, Remigiusz, Dorota, Damian, Daniel, Konrad, Adam, Kuba, Marta, Marek, Magda, Beata, Kinga, Aleksandra, Paweł, Jakub, Marcin, Maciej, Monika, Sylwia, Bogdan, Kacper, Piotr, and Małgorzata