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Cognomen Duangsit (Duangsit ) , worldwide, is a very rare surname. The surname Duangsit is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Duangsit | Thailand |
Buachan, Chayanis, Thanyamas, Thanyamat, and Natthaphong