Cognomen Chanmun (Chanmun 
) , all around the world, is a very rare last name. The family name Chanmun is characteristic of Thailand, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. More frequently, Chanmun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chanmun | Thailand, India, Nigeria |