Cognomen นพวิชัย (นพวิชัย 
, Nopvichai 
) , all over the world, is a very rare surname. The surname นพวิชัย is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Likewise, นพวิชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นพวิชัย | Thailand |
| Nopvichai | United States, Thailand |
| พล นพวิชัย Thai actor, TH (b. 1986) |
|