Cognomen Wojtczak (Wojtczak 
) , across the world, is quite a common family name. The family name Wojtczak is habitual in Poland, where it is quite a common surname, Ireland, where it is a rare surname, and Germany. In absolute terms, the name is most common in Poland, the United States, and Germany. Also, Wojtczak is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wojtczak | Poland, France, United States, United Kingdom, Germany |
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włodzimira czesława wojtczak PL (b. 1909) |
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tadeusz wojtczak (b. 1915) |
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andrzej wojtczak Polish physician, PL (b. 1933) |
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edyta wojtczak Polish presenter, PL (b. 1936) |
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michał wojtczak Polish politician and deputy, PL (b. 1954) |
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piotr wojtczak Polish diplomat, PL (b. 1963) |
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| marian wojtczak Polish actor, PL (b. 1916) |
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| albert wojtczak (b. 1907) |
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| edouard wojtczak Polish footballer (1921-1995), RU (b. 1921) |
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| tadeusz wojtczak (b. 1913) |
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| zbigniew wojtczak Polish chemist, PL (b. 1925) |
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ireneusz wojtczak PL (b. 1968) |
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| anna wojtczak PL (b. 1928) |
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| leszek wojtczak Polish physicist, PL (b. 1939) |
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| jadwiga wojtczak Polish sportsperson and athletics competitor, PL (b. 1942) |
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