Family name Knězek (Knězek 
) , in the entire world, is a very rare surname. The surname Knězek is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| františek knězek Czech educator, CZ (b. 1868) |
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| josef knězek CZ (b. 1908) |
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| zdeněk knězek Czechoslovak translator, AT (b. 1918) |
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| libor knězek CZ (b. 1929) |
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| pavel knězek CZ (b. 1947) |
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