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Family name Buasawai (Buasawai ) , throughout the world, is a very rare cognomen. The cognomen Buasawai is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Buasawai | Thailand |
Somsak, Somrudee, Piyaporn, Thananya, and Khanuengnit