Cognomen Petchrung (Petchrung 
, เพชรรุ่ง) , globally, is a very rare last name. The surname Petchrung is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, Petchrung is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petchrung | Thailand |