Surname Jánský (Jánský 
) , around the globe, is a rare cognomen. The cognomen Jánský is habitual in Czechia, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Jánský | Czechia, United States |
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jiří jánský Czech historian, CZ (b. 1941) |
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| josef jánský CZ (b. 1886) |
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| adolf jánský CZ (b. 1888) |
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| antonín jánský CZ (b. 1893) |
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| josef jánský CZ (b. 1901) |
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| alfréd jánský prisoner of a Nazi regime (1914-2015), CZ (b. 1914) |
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| filip jánský Czech bookwriter, CZ (b. 1922) |
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| josef jánský (b. 1917) |
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| radomír klein jánský Czechoslovak linguist, CZ (b. 1928) |
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| jan jánský CZ (b. 1920) |
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| bohumil jánský (b. 1922) |
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| maxim jánský CZ (b. 1924) |
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| josef jánský Czech long-distance runner, CZ (b. 1940) |
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| jaroslav jánský CZ (b. 1952) |
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| zdeněk jánský CZ (b. 1954) |
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Jan, Patrik, Robert, Dušan, Luboš, Jiří, Damián, Lukáš, Tomáš, Václav, Ondřej, Zdeněk, Miloslav, Miroslav, Jaroslav, Vladimir, Michal, Miloš, Martin, Filip, Ivo, Adam, Kuba, Petr, Ivan, Marek, Milan, Christian, Karel, Radek, Roman, David, Jakub, Josef, Jirka, Honza, Pavel, and Vlastimil