Cognomen Siwek (Siwek 
) , across the world, is quite a common surname. The family name Siwek is habitual in Poland, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Czechia. Measured by absolute frequency, it is commonest in Poland, the United States, and Germany. Likewise, Siwek is the forename as well as the last name.
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paweł siwek PL (b. 1893) |
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| franciszek siwek Polish poet (1858-1933), PL (b. 1858) |
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jan kazimierz siwek Polish poet, PL (b. 1945) |
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gerard siwek PL (b. 1938) |
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| karol siwek Polish Righteous Among the Nations, PL (b. 1902) |
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tadeusz siwek Czech geographer, CZ (b. 1953) |
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| władysław siwek Polish artist and Auschwitz prisoner, PL (b. 1907) |
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nathalie siwek (b. 1970) |
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rafal siwek Polish opera singer |
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| alberyk siwek PL (b. 1920) |
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| tadeusz siwek CZ (b. 1925) |
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| tadeusz siwek Polish sportsperson, PL (b. 1935) |
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| marian siwek Polish painter, PL (b. 1936) |
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| carol a. siwek American politician in New York (born 1938), US (b. 1938) |
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| helena siwek Polish mathematician, PL (b. 1940) |
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