Family name Vnuk (Vnuk 
, Внук 
) , in the world, is quite a rare surname. The cognomen Vnuk is characteristic of Slovenia, where it is quite a rare surname, Slovakia, and Croatia. Not in comparison with a country's population, this name is the most popular in Eastern Europe, particularly Belarus, Slovakia, and Ukraine.
| valér vnuk SK (b. 1894) |
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| karel vnuk (b. 1902) |
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tomaž vnuk Yugoslav and Slovenian ice hockey player, SI (b. 1970) |
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jure vnuk Slowenian ice hockey player, SI (b. 1974) |
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| františek vnuk Slovak historian, SK (b. 1926) |
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anna vnuk SE (b. 1974) |
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| rajko vnuk Slowenian ice hockey player, SI (b. 1948) |
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| gordana vnuk (b. 1956) |
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| ľubomír vnuk association football player (1970-2013), SK (b. 1970) |
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| vladimir vnuk SK (b. 1978) |
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| branko vnuk SI |
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| marija glavač-vnuk SI |
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| dejan vnuk Slovene military personnel, SI |
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