Surname Wichaichan (Wichaichan 
) , in the entire world, is an extremely rare cognomen. The surname Wichaichan is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Wichaichan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wichaichan | Thailand |