Cognomen พัฒนะศิริ (พัฒนะศิริ 
, Phatthanasiri ) , all around the world, is a very rare family name. The surname พัฒนะศิริ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phatthanasiri, พัฒนะศิริ | Thailand |