Family name วงศ์วัชรกุลชัย (วงศ์วัชรกุลชัย 
) , all around the world, is a very rare cognomen. The family name วงศ์วัชรกุลชัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วงศ์วัชรกุลชัย | Thailand |