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Last name Inthajai (Inthajai ) , in the entire world, is a very rare cognomen. The surname Inthajai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Inthajai | Thailand |
Kiam, Sarika, Srisuda, Kanitha, Gunchaya, Warunchai, Charoonsap, and Phatcharin