Last name Vlasák (Vlasák 
, Власак 
) , all over the world, is quite a rare family name. The cognomen Vlasák is characteristic of Eastern Europe, particularly Czechia, where it is quite a common surname, Slovakia, where it is a rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vlasák | Slovakia, Brazil, United States, United Kingdom, Czechia |
| Власак | Ukraine, Russia |
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josef věnceslav vlasák Czech educator, translator and writer, CZ (b. 1802) |
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antonín norbert vlasák Czech genealogist, geographer, historian, chronicler, mayor and roman catholic priest, CZ (b. 1812) |
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| joseph wenzel vlasák (b. 1802) |
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josef vlasák Czech Roman Catholic priest, CZ (b. 1867) |
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bohumil vlasák Czechoslovak minister of finance and Czechoslovak politician, CZ (b. 1871) |
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| anton norbert vlasák (b. 1812) |
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erazim vlasák CZ (b. 1864) |
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| františek vlasák Czech translator (1827-1878), CZ (b. 1827) |
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| franz vlasák (b. 1827) |
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| josef vlasák (b. 1851) |
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| antonín norbert vlasák CZ (b. 1855) |
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| karel vlasák CZ (b. 1857) |
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| václav vlasák Czech photographer, CZ (b. 1880) |
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| františek vlasák CZ (b. 1874) |
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| ladislav vlasák CZ (b. 1874) |
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Jan, Matěj, Miloš, Michal, Patrik, Rudolf, Daniel, Luboš, Láďa, Jiří, Vašek, Victor, Víťa, Otakar, Zbyšek, Michael, Richard, Dominik, Lukáš, Tomáš, Tobiáš, Václav, Marcel, Martin, Ondra, Filip, Adam, Kuba, Petr, Pepa, Vít, Marek, Milan, Aleš, Karel, Karol, Ondřej, Pavel, Radek, Roman, René, David, Libor, Jakub, Josef, Jirka, Honza, Vojta, Peter, and Zdeněk