Family name Kangwanprai (Kangwanprai 
) , in all the world, is an extremely rare surname. The surname Kangwanprai is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, Kangwanprai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kangwanprai | Thailand |