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