Surname Csiki (Csiki 
) , all around the world, is quite a common cognomen. The cognomen Csiki is characteristic of Hungary, where it is quite a common surname, Romania, and Mongolia, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Hungary, Romania, and the United States. Very seldom, Csiki is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Csiki | Mongolia, Hungary, United States, Germany, Romania |
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csiki ernő Hungarian entomologist (1875–1954), HU (b. 1875) |
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| csiki júlia Hungarian dancer (1923-1991), HU (b. 1923) |
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csiki renáta Hungarian handball player, HU (b. 1994) |
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| csiki lászló HU (b. 1944) |
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| csiki zoltán Hungarian internist, university teacher, HU (b. 1962) |
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| zoltan csiki-sava Romanian paleontologist, RO (b. 1971) |
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| irma e csiki researcher |
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| csiki norbert Hungarian association footballer, HU (b. 1991) |
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| orsolya csiki RO (b. 1981) |
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| csiki anna Hungarian footballer, HU (b. 1999) |
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| endre csiki chess player |
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