Last name พัฒศิริ (พัฒศิริ 
) , in the world, is a very rare family name. The family name พัฒศิริ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พัฒศิริ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พัฒศิริ | Thailand |