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Cognomen Santachai (สันตชัย , Santachai
) , worldwide, is an extremely rare surname. The last name Santachai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Santachai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สันตชัย, Santachai | Thailand |
Pothong, Tongtee, and Sirinapaporn