Surname Kempný (Kempný 
) , in the entire world, is a very rare cognomen. The surname Kempný is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| ján kempný Czechoslovak member of Czechoslovak national parliament and slovak nation politician, SK (b. 1912) |
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| ladislav kempný CZ (b. 1909) |
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| josef kempný Czech member of Czech National Council, prime minister of the CR and politician (1920-1996), CZ (b. 1920) |
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michal kempný Czech ice hockey player, CZ (b. 1990) |
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| edmund kempný (b. 1936) |
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| emilián kempný (b. 1937) |
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| zdeněk kempný (b. 1954) |
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