Cognomen Sëiñ (Sëiñ 
) , around the globe, is a very rare surname. The family name Sëiñ is characteristic of South-eastern Asia, particularly Myanmar, where it is a very rare surname. Also, Sëiñ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sëiñ | Myanmar |