Last name Kempny (Kempny 
) , all over the world, is a rare cognomen. The surname Kempny is habitual in Poland, where it is quite a rare surname, Czechia, and Sweden, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Poland, Germany, and Czechia. Likewise, Kempny is the forename as well as the last name.
| peter kempny Austrian entomologist and zoologist, AT (b. 1862) |
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| hedy kempny Austrian journalist, AT (b. 1895) |
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| henryk kempny Polish association football player (1934-2016), PL (b. 1934) |
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simon kempny DE (b. 1982) |
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| marian kempny Polish sociologist, PL (b. 1954) |
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| aleksander kempny researcher |
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| krzysztof kempny PL |
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