Cognomen Witayavanitchai (Witayavanitchai 
) , throughout the world, is an extremely rare family name. The surname Witayavanitchai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Very seldom, Witayavanitchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Witayavanitchai | Thailand |