Cognomen Chennaux (Chennaux 
) , across the world, is a very rare family name. The surname Chennaux is characteristic of Western Europe, particularly Luxembourg, where it is quite a rare surname, Belgium, where it is a rare surname, and France, where it is a very rare surname. In absolute terms, this name is the most popular in Belgium, the United States, and Luxembourg.
| VARIANT | COUNTRY |
|---|---|
| Chennaux | Luxembourg, France, Brazil, United States, Belgium |
| marcel chennaux (1912-2004), LU (b. 1912) |
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| josé chennaux Belgian association football player (1917-2007), BE (b. 1917) |
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