Family name Ýäñ (Ýäñ 
) , in all the world, is a rare cognomen. The last name Ýäñ is habitual in South-eastern Asia, particularly Myanmar, where it is a rare surname. Much less frequently, Ýäñ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ýäñ | Myanmar, Thailand |