Last name Suwanwichai (Suwanwichai 
) , throughout the world, is a very rare surname. The family name Suwanwichai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Suwanwichai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suwanwichai | Thailand |