Cognomen โปร่งสุวรรณ (โปร่งสุวรรณ, Prongsuwan 
) , all around the world, is a very rare surname. The cognomen โปร่งสุวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Prongsuwan | Thailand |