Last name Łuczak (Luczak 
, Łuczak ) , in the entire world, is a common family name. The surname Łuczak is habitual in Poland, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Germany. Measured by absolute frequency, this name is the most popular in Poland, the United States, and Germany. Likewise, Łuczak is the forename as well as the last name.
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| Luczak, Łuczak | Poland, France, United Kingdom, United States, Germany |
| paweł łuczak Officer of the Polish Army, UA (b. 1892) |
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andrzej łuczak Polish mathematician and chess player, PL (b. 1948) |
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| roman łuczak Polish Righteous Among the Nations, PL (b. 1899) |
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| natalia łuczak Polish Righteous Among the Nations, PL (b. 1904) |
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| antoni łuczak PL (b. 1900) |
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| aleksander kazimierz łuczak PL (b. 1905) |
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| szczepan łuczak PL (b. 1906) |
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maciej łuczak Polish politician, PL (b. 1967) |
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| czesław łuczak Polish historian, PL (b. 1922) |
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jacek łuczak PL (b. 1962) |
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| stanisław łuczak PL (b. 1912) |
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robert łuczak Polish geographer, PL (b. 1977) |
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| jacek łuczak Polish physician (1934-2019), PL (b. 1934) |
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marcin łuczak Polish actor, PL (b. 1985) |
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krystian marek łuczak PL (b. 1975) |
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Ala, Marta, Marek, Magda, Sonia, Alina, Anita, Aneta, Artur, Agata, Basia, Beata, Bruno, Karol, Kamil, Kasia, Kazik, Kewin, Kinga, Paula, Pawel, Paweł, Maria, Zuza, Wika, Olga, Aga, Jan, Ela, Ewa, Ola, Maja, Sebo, Alex, Anna, Ania, Piotr, Anka, Adam, Asia, Kaja, Kuba, Pola, Jola, Eryk, Inez, Igor, Olaf, Arek, and Radek