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Cognomen Parnsuwan (Parnsuwan ) , worldwide, is a very rare family name. The family name Parnsuwan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Parnsuwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Parnsuwan | Thailand |
Anusart, Apassara, Chanokkan, and Paratthakorn