Surname Gradišnik (Gradišnik 
) , worldwide, is a rare family name. The surname Gradišnik is characteristic of Southern Europe, particularly Slovenia, where it is quite a rare surname, and Croatia, where it is a rare surname.
| VARIANT | COUNTRY |
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| Gradišnik | Croatia, Slovenia |
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armin gradišnik SI (b. 1858) |
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ferdo gradišnik Slovene military pilot (b. 1899) |
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fedor gradišnik SI (b. 1890) |
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branko gradišnik writer, translator, SI (b. 1951) |
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| janez gradišnik Slovenian artist, SI (b. 1917) |
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bernarda gradišnik SI |
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| ingrid slavec gradišnik Slovene ethnologist, SI (b. 1956) |
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| karli gradišnik Slovene zitherist, SI (b. 1961) |
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| andrej gradišnik SI (b. 1963) |
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| peter gradišnik SI (b. 1966) |
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| lidija gradišnik researcher |
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| lidija gradišnik SI (b. 1972) |
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| rok gradišnik Slovenian rower, SI (b. 1988) |
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| marina gradišnik SI |
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| darjan gradišnik SI |
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