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Cognomen Sanguanphuak (Sanguanphuak ) , all over the world, is a very rare family name. The surname Sanguanphuak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sanguanphuak | Thailand |
Suwimon, Rungsak, Suwaphat, and Phanuphong