Cognomen Chennaz (Chennaz 
) , in all the world, is a very rare family name. The surname Chennaz is characteristic of Switzerland, where it is a very rare surname, France, and the United States, where it is an extremely rare surname. Very seldom, Chennaz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chennaz | Switzerland, France, United States |