Cognomen กรพัฒน์ถิรรุจ (กรพัฒน์ถิรรุจ 
) , across the world, is an extremely rare family name. The family name กรพัฒน์ถิรรุจ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| กรพัฒน์ถิรรุจ | Thailand |