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Cognomen Phachai (พาชัย , Phachai
) , throughout the world, is a rare last name. The surname Phachai is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, Phachai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พาชัย | Thailand |
| Phachai | United States, India, Thailand |