Family name Nadault (Nadault 
) , around the globe, is an extremely rare last name. The cognomen Nadault is habitual in Western Europe, particularly France, where it is an extremely rare surname.
| jean nadault French lawyer, naturalist and historian (1701-1779), FR (b. 1701) |
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| benjamin nadault de buffon French engineer, FR (b. 1804) |
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| alexandre-henri nadault de buffon French writer, FR (b. 1831) |
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