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Surname Thongprasart (Thongprasart ) , globally, is a very rare cognomen. The surname Thongprasart is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thongprasart | Thailand |
Phayom, Thawan, Sirirak, Kanyapak, and Wallayaphorn