Family name นพกุลวงษ์ (นพกุลวงษ์ 
) , in the entire world, is an extremely rare surname. The family name นพกุลวงษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| นพกุลวงษ์ | Thailand |