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