Family name Yyon (Yyon 
) , all over the world, is a very rare surname. The family name Yyon is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Vietnam, where it is an extremely rare surname. Much less frequently, Yyon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yyon | Canada, Malaysia, United States, Vietnam |