Cognomen Szaniszló (Szaniszló 
, Szaniszlo 
) , all around the world, is quite a rare family name. The last name Szaniszló is habitual in Eastern Europe, particularly Hungary, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Romania, where it is a rare surname. Much less frequently, Szaniszló is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Szaniszló | Hungary, Slovakia |
| Szaniszlo | Romania, Hungary, Canada, Slovakia, United States |
Estanislao, Stanislav, Stanislaw, Stanisław, Станислав, Станислаус, Станіслав, Станіслаў, Стас, Стасик, Стасян, and Эстанислао
| szaniszló, voivode of ung Voivode of Ung, Bereg, Dolha and Hosszumezõ (1326 – 1370) (b. 1400) |
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| sigmundo szaniszló (b. 1650) |
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| albert szaniszló RO (b. 1844) |
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szaniszló sándor HU (b. 1948) |
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| zoltán szaniszló international footballer for Hungary and Romania, RO (b. 1909) |
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| július szaniszló Czechoslovak member of Slovak National Council, member of Czechoslovak parliament, politician and hungary nation politician (b. 1937) |
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| szaniszló ferenc Hungarian broadcaster, HU (b. 1960) |
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| szaniszló jános mayor of Szendrő (2006–2013, 2020–), HU (b. 1961) |
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| inocent-mária szaniszló SK (b. 1962) |
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| szaniszló sándor HU (b. 1969) |
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| tamás szaniszló researcher |
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