Cognomen Kientz (Kientz 
) , throughout the world, is quite a rare surname. The last name Kientz is characteristic of Western Europe, particularly France, where it is quite a rare surname, Switzerland, and Netherlands, where it is a rare surname. Measured by absolute frequency, it is commonest in France, the United States, and Germany.
| VARIANT | COUNTRY |
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| Kientz | Netherlands, Switzerland, France, United States, Germany |
| andré kientz FR (b. 1896) |
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| jacky kientz French entrepreneur and leader of the Racing Club de Strasbourg, FR (b. 1953) |
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| chris kientz American-Canadian animator, US (b. 1967) |
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| jochen kientz German football player/model, DE (b. 1972) |
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| cathy kientz French politician, FR (b. 1973) |
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| guillaume kientz French art historian and curator, FR (b. 1980) |
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| julie a kientz American computer scientist (b. 1980) |
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| caroline kientz researcher (ORCID 0000-0001-5229-1733) |
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