Family name ยุววรรณ (ยุววรรณ 
) , around the globe, is a very rare cognomen. The surname ยุววรรณ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ยุววรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ยุววรรณ | Thailand |