Family name Błaszczyk (Blaszczyk 
, Błaszczyk ) , all over the world, is a common surname. The cognomen Błaszczyk is habitual in Poland, where it is quite a common surname, Ireland, where it is quite a rare surname, and France, where it is a rare surname. Not in comparison with a country's population, the name is most common in Poland, France, and Germany. More frequently, Błaszczyk is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Blaszczyk, Błaszczyk | Germany, France, Poland, United Kingdom, United States |
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adam błaszczyk PL (b. 1892) |
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| stanisław błaszczyk Polish Righteous Among the Nations, PL (b. 1878) |
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| anastazja błaszczyk Polish Righteous Among the Nations, PL (b. 1888) |
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józef błaszczyk Polish politician and deputy, PL (b. 1945) |
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bernard błaszczyk Polish lawyer, PL (b. 1947) |
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ewa błaszczyk Polish actress, PL (b. 1955) |
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| helena błaszczyk Polish Righteous Among the Nations, PL (b. 1922) |
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waldemar błaszczyk Polish actor, PL (b. 1973) |
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lucjan błaszczyk Polish table tennis player, PL (b. 1974) |
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henryk błaszczyk PL (b. 1966) |
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przemysław błaszczyk Polish politician, PL (b. 1977) |
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| leszek błaszczyk Polish journalist (1928-2008), PL (b. 1928) |
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| włodzimierz błaszczyk Polish archaeologist, PL (b. 1929) |
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marek błaszczyk PL (b. 1972) |
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| leon t. błaszczyk PL (b. 1923) |
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Ala, Zuza, Maria, Marta, Marek, Magda, Mirka, Alina, Antek, Anita, Aneta, Artur, Agata, Basia, Beata, Borys, Bogna, Karol, Kamil, Kasia, Kinga, Pawel, Olga, Igor, Emil, Eryk, Ada, Aga, Jan, Ela, Ewa, Iga, Iza, Ola, Ula, Maja, Paweł, Sara, Ania, Anka, Arek, Adam, Asia, Kaja, Kuba, Roma, Jola, Nina, Anna, and Piotr