Family name Kašák (Kašák 
) , worldwide, is a rare last name. The surname Kašák is habitual in Eastern Europe, particularly Czechia, where it is a rare surname, and Slovakia.
| karel kašák Czechoslovak journalist, CZ (b. 1906) |
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| jindřich kašák CZ (b. 1896) |
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| františek kašák (b. 1923) |
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| viktor kašák CZ (b. 1950) |
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| karel kašák CZ (b. 1974) |
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