Last name Mezník (Mezník 
) , around the world, is a very rare surname. The cognomen Mezník is habitual in Eastern Europe, particularly Czechia, where it is a rare surname, and Slovakia.
| VARIANT | COUNTRY |
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| Mezník | Czechia, Slovakia |
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antonín mezník Czech attorney, CZ (b. 1831) |
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jaroslav mezník Czech politician, CZ (b. 1884) |
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| cyril mezník CZ (b. 1849) |
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| alois mezník CZ (b. 1911) |
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| josef mezník (b. 1912) |
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| ladislav mezník CZ (b. 1914) |
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bořek mezník Czech poet, IT worker and sales manager, CZ (b. 1974) |
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| jaroslav mezník Czech archivist and historian, SK (b. 1928) |
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| františek mezník (b. 1934) |
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| ivan mezník CZ (b. 1942) |
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| lubomír mezník (b. 1942) |
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