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Family name Wiriyachai (Wiriyachai
) , in all the world, is an extremely rare last name. The surname Wiriyachai is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Wiriyachai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wiriyachai | Thailand, United States |
Roopkumdee, Chanawong, Pirakitikulr, Nikhomchaikul, and Jittawattanarat