Surname Vallat (Vallat 
, ולה 
) , all over the world, is quite a rare last name. The surname Vallat is habitual in Switzerland, where it is quite a rare surname, France, and the Democratic Republic of the Congo, where it is a rare surname. Very seldom, Vallat is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Vallat | Democratic Republic of the Congo, Switzerland, France, United States, India |
| ולה | Israel |
| charles de vallat (b. 1816) |
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xavier vallat French politician. Coordinator of Jewish affairs in France’s Vichy government during 1941 and 1942, FR (b. 1891) |
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| gustave vallat French university teacher, FR (b. 1842) |
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| jules de vallat French politician, FR (b. 1849) |
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| maurice vallat (1860-1910), CH (b. 1860) |
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| émile vallat French official, FR (b. 1872) |
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jean vallat Swiss agricultural economist and professor at the Swiss Federal Institute of Technology (ETH) in Zurich (1924-2009), CH (b. 1924) |
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| gustave-edouard-victor vallat French military personnel, FR (b. 1878) |
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| gabrielle vallat FR (b. 1889) |
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jean pierre vallat French historian (1951-2021), FR (b. 1951) |
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| marcel vallat FR (b. 1898) |
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| georges vallat (b. 1900) |
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| francis vallat Vallat, Sir Francis Aimé (1912–2008), international lawyer, professor, and civil servant, GB (b. 1912) |
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| paul vallat French magistrate, FR (b. 1915) |
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david vallat former French jihadist, FR (b. 1971) |
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