Cognomen พัฒนธันยธรณ์ (พัฒนธันยธรณ์ 
) , globally, is an extremely rare last name. The family name พัฒนธันยธรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พัฒนธันยธรณ์ | Thailand |