Family name Stefaniuk (Stefaniuk 
, Стефанюк 
) , worldwide, is quite a common surname. The cognomen Stefaniuk is characteristic of Ukraine, where it is quite a rare surname, Poland, and Canada, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Ukraine, Poland, and Russia. Also, Stefaniuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stefaniuk | United Kingdom, Poland, Canada, Germany, United States |
| Стефанюк | Ukraine, Belarus, Russia, Kyrgyzstan, Kazakhstan |
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zenon stefaniuk Polish boxer, PL (b. 1930) |
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franciszek stefaniuk Polish politician, PL (b. 1944) |
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dariusz stefaniuk Polish politician, PL (b. 1981) |
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rob stefaniuk Canadian comedian, actor, director and screenwriter, CA |
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| monika stefaniuk researcher |
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| marzena stefaniuk researcher, PL |
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| maria stefaniuk Polish Righteous Among the Nations, PL |
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| ireneusz stefaniuk researcher ORCID ID = 0000-0003-2616-9595 |
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| tomasz stefaniuk researcher, PL |
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| elżbieta stefaniuk researcher |
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| magdalena stefaniuk researcher ORCID ID = 0000-0001-7251-6100, PL |
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| damian stefaniuk Polish civil engineer and researcher, PL |
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| nazar stefaniuk particle physicist in Kyiv, Ukraine |
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| stefan stefaniuk Polish Righteous Among the Nations, PL |
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| dawid stefaniuk researcher ORCID ID = 0000-0002-0183-6059, PL |
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