Family name Mikołajczyk (Mikołajczyk 
, Миколайчик 
) , around the world, is quite a common surname. The last name Mikołajczyk is habitual in Eastern Europe, particularly Poland, where it is quite a common surname, Belarus, where it is quite a rare surname, and Ukraine, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mikołajczyk | Germany, France, Netherlands, Poland, Belgium |
| Миколайчик | Belarus, Russia, Ukraine, Kazakhstan |
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stanisław mikołajczyk Polish politician (1901-1966), PL (b. 1901) |
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edmund mikołajczyk Polish aviator, PL (b. 1935) |
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antoni mikołajczyk Polish painter (1939-2000), PL (b. 1939) |
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bożena mikołajczyk Polish economist, PL (b. 1944) |
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| zygmunt mikołajczyk Polish Righteous Among the Nations, PL (b. 1898) |
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| bronisław mikołajczyk PL (b. 1896) |
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| joanna mikołajczyk (b. 1900) |
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| józef mikołajczyk (b. 1912) |
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łukasz mikołajczyk Polish politician, PL (b. 1977) |
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| leon mikołajczyk Polish mathematician, PL (b. 1929) |
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| emanuel mikołajczyk association football player (1931-2018), PL (b. 1931) |
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aleksandra mikołajczyk Polish actress, PL (b. 1982) |
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beata mikołajczyk Polish canoeist, PL (b. 1985) |
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| janina grochmalicka-mikołajczyk PL (b. 1926) |
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| edward mikołajczyk Polish sportsperson (1937-2004), PL (b. 1937) |
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Ala, Maria, Marta, Marek, Magda, Monia, Mirek, Alina, Allan, Anita, Aneta, Artur, Agata, Basia, Beata, Brian, Karol, Kamil, Kasia, Kinga, Klara, Paula, Zuza, Olga, Olaf, Igor, Aga, Jan, Ela, Ewa, Iza, Ola, Ula, Maja, Mira, Sara, Pawel, Alan, Ania, Aron, Adam, Asia, Kuba, Jola, Nata, Eryk, Emil, Irek, Anna, and Paweł