Surname Vaillant (Vaillant 
, Vayan 
, Вайян 
) , globally, is a common last name. The last name Vaillant is habitual in France, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Cuba. In absolute terms, the name is most common in France, Canada, and India. Much less frequently, Vaillant is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Vaillant | Canada, India, France, United States, Democratic Republic of the Congo |
| Vayan | Spain, Brazil, India, France, United States |
| Вайян | Armenia |
Levaillant, Valant, Valentem, Valiant, and Valoir
| jehan vaillant French composer and music theorist, FR (b. 1400) |
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wallerant vaillant painter from the Northern Netherlands (1623-1677), FR (b. 1623) |
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jacques vaillant Dutch painter (1643-1691), NL (b. 1643) |
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sébastien vaillant French mycologist (1669-1722), FR (b. 1669) |
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| jan vaillant Dutch Golden Age painter (1624-1668), NL (b. 1627) |
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| jakob vaillant Dutch artist (b. 1628) |
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| bernard vaillant Dutch Golden Age painter (1632-1698), FR (b. 1632) |
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| andries vaillant Dutch Golden Age engraver (1655-1693), NL (b. 1655) |
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| paul vaillant FR (b. 1672) |
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jacques louis nicolas vaillant French politician, FR (b. 1742) |
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albertine josèphe eulalie le vaillant FR (b. 1750) |
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christiaan joannes vaillant NL (b. 1780) |
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jean baptiste philibert vaillant French General, Marshal of France (1790-1872), FR (b. 1790) |
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auguste-nicolas vaillant French sailor and politician (1793-1858), FR (b. 1793) |
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frédéric vaillant Swiss politician (1801-1880), CH (b. 1801) |
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