Cognomen Ratanakiatichai (Ratanakiatichai 
) , in all the world, is an extremely rare family name. The surname Ratanakiatichai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ratanakiatichai | Thailand |
Mew, Sirisuai, and Chaiyasith