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Surname Phiengjai (Phiengjai
) , in all the world, is an extremely rare last name. Much more frequently, Phiengjai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phiengjai | Thailand, United States |
Polsuk, Baporia, Khamjan, Samakkee, Pholphoke, Tansuchart, Nuanmanee, and Jatukanyaprateep