Family name วงศ์เพชรพลอย (วงศ์เพชรพลอย 
) , throughout the world, is a very rare last name. The family name วงศ์เพชรพลอย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วงศ์เพชรพลอย | Thailand |