Surname Koczy (Koczy 
) , in all the world, is quite a rare family name. The last name Koczy is characteristic of Hungary, where it is quite a rare surname, Poland, and Germany, where it is a rare surname. Also, Koczy is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Koczy | Germany, Austria, Hungary, Poland, Argentina |
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friedrich f. koczy Austrian-born oceanographer (1914-1967), AT (b. 1914) |
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rosemarie koczy artist (1939-2007), DE (b. 1939) |
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| leon koczy PL (b. 1900) |
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ute koczy German politician, DE (b. 1961) |
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| jan koczy Polish speedway rider, PL (b. 1953) |
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| winfried koczy German sculptor and painter, DE (b. 1956) |
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| petra koczy DE (b. 1965) |
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| robert koczy DE (b. 1966) |
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| laszlo a. koczy Ph.D. Katholieke Universiteit Leuven 2003 |
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| max koczy |
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