Last name เยาวพงศ์ศิริ (เยาวพงศ์ศิริ 
) , around the globe, is a very rare family name. The cognomen เยาวพงศ์ศิริ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เยาวพงศ์ศิริ | Thailand |