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Cognomen Ruault (Ruault
) , around the world, is quite a rare surname. The cognomen Ruault is habitual in Western Europe, particularly France, where it is quite a rare surname, Austria, where it is a rare surname, and Belgium. Not in comparison with a country's population, it is commonest in France, Canada, and Belgium. Very seldom, Ruault is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruault | Belgium, Canada, France, Austria, United Kingdom |