Cognomen Cadeau (Kado 
, Cadeau 
, Cadou 
) , throughout the world, is a common last name. The surname Cadeau is characteristic of Seychelles, where it is quite a common surname, Bhutan, and Fiji. Not in comparison with a country's population, this name is the most popular in France, Nigeria, and Indonesia. Very seldom, Cadeau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kado | India, United States, France, Indonesia, Nigeria |
| Cadeau | United States, France, Egypt, Algeria, Canada |
| Cadou | United States, France, Mauritius, Canada, Brazil |
| rené cadeau FR (b. 1782) |
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| aimé cadeau FR (b. 1841) |
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| andrée cadeau French painter, FR (b. 1912) |
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dayana cadeau Haitian-born Canadian/American professional female bodybuilder, CA (b. 1966) |
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| charmaine cadeau Canadian writer, CA |
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| claire cadeau researcher |
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| serge cadeau |
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| elliot cadeau Basketball player |
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