Cognomen ז'ואן (Juin 
, ז'ואן 
) , throughout the world, is quite a common family name. The family name ז'ואן is characteristic of Malaysia, where it is quite a rare surname, France, and Haiti. Not in comparison with a country's population, it most frequently occurs in France, Malaysia, and India. Likewise, ז'ואן is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juin | Haiti, Taiwan, France, India, Malaysia |
| ז'ואן | Israel |