Family name Krzyżaniak (Krzyżaniak 
) , in the world, is a rare cognomen. The family name Krzyżaniak is habitual in Poland, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
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| Krzyżaniak | Poland, United States, United Kingdom |
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jacek krzyżaniak Polish speedway rider, PL (b. 1968) |
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| zbigniew krzyżaniak (b. 1914) |
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tomasz krzyżaniak Polish musician, PL (b. 1980) |
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| jadwiga krzyżaniakowa Polish medievalist, PL (b. 1930) |
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| wiesław krzyżaniak PL (b. 1947) |
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| wojciech krzyżaniak Polish journalist, PL (b. 1968) |
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| michał krzyżaniak Polish researcher, PL |
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| michał krzyżaniak researcher (ORCID 0000-0003-2393-0756) |
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Jan, Jacek, Jakub, Jerzy, Julia, Edyta, Filip, Ilona, Marcin, Madzia, Maciej, Maciek, Monika, Milena, Sandra, Sylwia, Szymon, Cezary, Bartek, Kamila, Konrad, Patryk, Lidia, Dawid, Daria, Rafał, Ela, Ewa, Anna, Ania, Adam, Kuba, Lech, Igor, Olga, Yuko, Robert, Zuza, Marek, Magda, Aneta, Artur, Agata, Beata, Karol, Kamil, Paweł, Piotr, Marta, and Daniel