Cognomen Juszczak (Juszczak 
) , across the world, is quite a common last name. The cognomen Juszczak is characteristic of Poland, where it is quite a common surname, France, where it is a rare surname, and Ireland. Not in comparison with a country's population, it is commonest in Poland, France, and the United States. More prevalently, Juszczak is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Juszczak | Germany, United Kingdom, United States, Poland, France |
| franciszek juszczak PL (b. 1889) |
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albert juszczak PL (b. 1947) |
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włodzimierz juszczak Ukrainian Greek Catholic bishop, PL (b. 1957) |
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| jósefa juszczak Polish nurse (b. 1914) |
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katarzyna juszczak Olympic wrestler, PL (b. 1972) |
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| jerzy juszczak Polish zootechnician (1928-2020), PL (b. 1928) |
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| wiesław juszczak Polish art historian (1932-2021), PL (b. 1932) |
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piotr juszczak Polish rower, PL (b. 1988) |
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| zbigniew juszczak Polish sportsperson and field hockey player, PL (b. 1946) |
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| stanisław juszczak PL (b. 1942) |
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| martine juszczak French politician, FR (b. 1957) |
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| wojciech juszczak Polish journalist, PL (b. 1965) |
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| marlena juszczak PL (b. 1956) |
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| gerard juszczak Polish association football manager, PL (b. 1970) |
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| zbigniew juszczak Olympic field hockey player, PL (b. 1975) |
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