Cognomen Šimák (Simak 
, Šimák , Шимак 
) , all over the world, is quite a rare surname. The family name Šimák is habitual in Eastern Europe, particularly Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Hungary. In absolute terms, this name is the most popular in Czechia, Slovakia, and Indonesia. Very seldom, Šimák is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Simak | Slovakia, Czechia, United States, Indonesia, Malaysia |
| Šimák | Czechia, United States, Slovakia |
| Шимак | Russia, Ukraine, Belarus |
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josef vítězslav šimák Czech historian (1870-1941), CZ (b. 1870) |
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| bedřich šimák (1826-1886), CZ (b. 1826) |
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| ferdinand šimák Czech attorney (1842-1904), CZ (b. 1842) |
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| josef šimák Czech school director, author of rope-making textbook (1842-1914), CZ (b. 1842) |
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lev šimák Czech natural painter and painter (1896-1989), CZ (b. 1896) |
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| fabián šimák attorney in Vysoké Mýto, Czechia (1849-1903), CZ (b. 1849) |
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| milan šimák judicial clerk in Prague (1879-1907), CZ (b. 1879) |
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| josef šimák CZ (b. 1888) |
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| jan šimák CZ (b. 1891) |
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| váša šimák-ostrovecký CZ (b. 1892) |
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| josef šimák (b. 1901) |
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| josef šimák CZ (b. 1902) |
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| rudolf šimák CZ (b. 1904) |
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| stanislav šimák (b. 1906) |
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| bohuslav šimák CZ (b. 1908) |
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Jan, Patrik, Renata, Rudolf, Daniel, Jiří, Otomar, Bohumil, Michal, Dominic, Václav, Ondřej, Zdeněk, Miloslav, Miroslav, Antonín, Jaroslav, Tomáš, Matěj, Martin, Ondra, Ivo, Adam, Kuba, Petr, Ján, Marek, Boris, Pavel, Pavol, Radim, Radek, Roman, David, Jakub, Josef, Jirka, Honza, Vladimír, and František