Cognomen Vallon (Vallon 
) , worldwide, is quite a common last name. The last name Vallon is characteristic of Reunion, where it is quite a common surname, France, where it is quite a rare surname, and Haiti. In absolute terms, it is the most numerous in France, the United States, and Germany. Much less frequently, Vallon is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Vallon | Haiti, Germany, France, United States, India |
| laurent vallon French architect (1652-1724), FR (b. 1652) |
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| georges vallon French architect (1688-1767), FR (b. 1688) |
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| annette vallon Peerage person ID=241945, FR (b. 1766) |
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aristide vallon French colonial governor of Senegal, FR (b. 1826) |
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| marie-catherine vallon SE (b. 1776) |
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| g. vallon author (1801-2000) (b. 1801) |
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| paul vallon French official (1805-1865), FR (b. 1805) |
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| alexandre-bernard vallon French veterinarian (1819-1864), FR (b. 1819) |
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| graziano vallon entomologist (1851-1926) (b. 1851) |
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| charles vallon Alienist; Born 1853 in Limoges Death 1924 in Paris (b. 1853) |
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| rené vallon (b. 1880) |
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| albert vallon AT (b. 1883) |
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| k. p. vallon Indian social reformer (b. 1894) |
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| fernand vallon French racing driver (1896-1962), FR (b. 1896) |
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| louis vallon French politician (1901-1981), FR (b. 1901) |
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