Cognomen โปตะวณิช (โปตะวณิช 
) , all over the world, is a very rare surname. The family name โปตะวณิช is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| โปตะวณิช | Thailand |
| วานิช โปตะวณิช TH (b. 1970) |
|