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Surname Phalavaddhana (Phalavaddhana ) , throughout the world, is a very rare family name. The last name Phalavaddhana is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phalavaddhana | Thailand |
Spak, Tanit, Narut, Thiwaporn, Khaninphit, Tunyaporn, Natthaphon, Phra Suthee, and Patcharapong