Cognomen ย่น (Yon 
, ย่น) , across the world, is a common family name. The family name ย่น is characteristic of Reunion, where it is quite a common surname, Malaysia, and Belize. Not in comparison with a country's population, it is the most numerous in South-eastern Asia, particularly Malaysia, Myanmar, and Indonesia. Also, ย่น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yon | United States, France, Malaysia, Indonesia, Myanmar |