Surname พรรัตน์ธนพงศ์ (พรรัตน์ธนพงศ์ 
) , around the world, is a very rare cognomen. The family name พรรัตน์ธนพงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พรรัตน์ธนพงศ์ | Thailand |