Cognomen Berthet (Berthet 
) , globally, is a common family name. The surname Berthet is habitual in France, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Guatemala. In absolute terms, this name is the most popular in France, Argentina, and Guatemala. Very seldom, Berthet is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Berthet | Belgium, Switzerland, Guatemala, France, Argentina |
| louis sébastien berthet (b. 1750) |
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élie berthet French writer, FR (b. 1815) |
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lucy berthet Belgian opera singer, BE (b. 1866) |
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marcel berthet French bicycle racer and track cyclist, FR (b. 1887) |
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| benoît berthet (b. 1828) |
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| prosper-amable berthet FR (b. 1838) |
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georges camille jules olivier berthet French skier, FR (b. 1903) |
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| albert berthet FR (b. 1844) |
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| louis berthet French politician (1857-1896), FR (b. 1857) |
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raymond berthet French Nordic combined skier, FR (b. 1909) |
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benny berthet French tennis player, FR (b. 1910) |
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| léon berthet French politician (1861-1937), FR (b. 1861) |
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| françois berthet Geboren 1873; Gestorben 1956 (b. 1873) |
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hortense berthet (1923-2004), FR (b. 1923) |
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| louis berthet FR (b. 1868) |
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