Family name Stefaniak (Stefaniak 
, Стефаняк 
) , in the world, is a common surname. The surname Stefaniak 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. Likewise, Stefaniak is the forename as well as the last name.
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casimir stefaniak French association football player (1920-1951), FR (b. 1920) |
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| stanisław stefaniak Polish officer (1900-1986), PL (b. 1900) |
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bill stefaniak Australian politician, AU (b. 1952) |
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| hans stefaniak (b. 1910) |
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| wiktor stefaniak (b. 1913) |
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| tadeusz stefaniak PL (b. 1914) |
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| ludwik stefaniak PL (b. 1930) |
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| janina stefaniak (b. 1930) |
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jakub stefaniak PL (b. 1981) |
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| józef stefaniak Polish ice hockey player, PL (b. 1941) |
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marvin stefaniak German footballer, DE (b. 1995) |
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| jan stanisław stefaniak (b. 1935) |
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| krzysztof stefaniak Polish sportsperson, PL (b. 1957) |
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| piotr stefaniak PL (b. 1949) |
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| krzysztof stefaniak Polish biologist and paleozoologist, PL (b. 1962) |
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