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Cognomen Samathin (Samathin
) , throughout the world, is a very rare family name. The last name Samathin is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Samathin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Samathin | India, Thailand |
Nisarat, Karnrawee, Cheewattanai, and Phacharanan