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Cognomen Sawasdiwej (Sawasdiwej ) , in all the world, is a very rare last name. The cognomen Sawasdiwej is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sawasdiwej | Thailand |
Chaiwat, Naphassorn, Phuriphat, and Natthanee