Cognomen Vangchai (Vangchai 
) , around the world, is a very rare surname. The family name Vangchai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Vangchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vangchai | Laos, Thailand |