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Surname Uthainit (Uthainit ) , around the world, is a very rare cognomen. The family name Uthainit is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Uthainit | Thailand |
Bundid, Naphat, Nattapon, Praphaphat, Phenprapha, and Nuengruthai