Family name พชรวงศ์ชัย (พชรวงศ์ชัย 
) , around the world, is an extremely rare surname. The surname พชรวงศ์ชัย is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พชรวงศ์ชัย | Thailand |