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Cognomen Kwanmanut (Kwanmanut ) , globally, is an extremely rare family name. The surname Kwanmanut is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Kwanmanut is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kwanmanut | Thailand |
Wongmek, Poungploy, Panyasaeng, and Wattanaputi