Surname Adamczyk (Adamczyk 
, Адамчик 
, Адамчык ) , around the world, is a common cognomen. The cognomen Adamczyk is habitual in Poland, where it is quite a common surname, Belarus, where it is quite a rare surname, and Ireland. Measured by absolute frequency, it is commonest in Poland, Germany, and the United States. More frequently, Adamczyk is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Adamczyk | United Kingdom, United States, France, Poland, Germany |
| Адамчик | Ukraine, Belarus, Russia, Kazakhstan |
| Адамчык | Russia |
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zdzisław adamczyk Officer of the Polish Army, UA (b. 1886) |
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alojzy adamczyk PL (b. 1895) |
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władysław adamczyk PL (b. 1900) |
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| szymon adamczyk Polish Righteous Among the Nations, PL (b. 1872) |
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| marie adamczyk Austrian nurse (1879-1973), AT (b. 1879) |
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| franciszek adamczyk PL (b. 1875) |
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| walenty adamczyk Polish conductor (1885-1956), PL (b. 1885) |
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| otto adamczyk (b. 1878) |
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| władysław adamczyk Polish officer, PL (b. 1894) |
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| weronika adamczyk Polish Righteous Among the Nations, PL (b. 1898) |
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| alojzy adamczyk [occupation:Sozialist; Gewerkschafter] [dates:1899] [archive:Polskie Archiwum Biograficzne] (b. 1899) |
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adam adamczyk Polish sportsperson, PL (b. 1950) |
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małgorzata gutowska-adamczyk Polish writer, PL (b. 1950) |
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| josef joachim adamczyk German politician (1901-1971), DE (b. 1901) |
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jan leszek adamczyk Polish art historian (1951-2010), PL (b. 1951) |
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