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Last name Phalavadhana (Phalavadhana ) , all around the world, is a very rare surname. The cognomen Phalavadhana is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phalavadhana | Thailand |
Suchaya, Chatchaya, Rattanaporn, and Vatcharachai