Cognomen Curtillet (Curtillet 
) , all over the world, is a rare last name. The last name Curtillet is habitual in Western Europe, particularly France, where it is a rare surname.
| VARIANT | COUNTRY |
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| Curtillet | France |
| joseph curtillet FR (b. 1863) |
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| jean-pascal curtillet French swimmer, FR (b. 1942) |
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| jacques curtillet French politician, FR (b. 1948) |
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| jean-christophe curtillet (b. 1964) |
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| jean-chrisrophe curtillet Ph.D. Ruhr-Universität Bochum 1997 |
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| jean-christophe curtillet Ph.D. Université Louis Pasteur - Strasbourg I 1988 |
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