Family name ยูเอ็น (Un 
, ยูเอ็น 
) , all around the world, is a common surname. The surname ยูเอ็น is characteristic of Macao, where it is a common surname, Malaysia, where it is quite a rare surname, and Albania. Not in comparison with a country's population, the name is most common in Indonesia, Macao, and Malaysia. Likewise, ยูเอ็น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Un | Malaysia, Indonesia, Taiwan, Japan, Macao |
| ยูเอ็น | Thailand |