Cognomen ธนพงศ์จิรา (ธนพงศ์จิรา 
) , all over the world, is a very rare surname. The last name ธนพงศ์จิรา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนพงศ์จิรา | Thailand |
จารุชา, ณัฏฐณิชา, and สุวัฒน์ชัย