Family name พฤทธ์พาณิชย์ (พฤทธ์พาณิชย์ 
) , all around the world, is a very rare cognomen. The surname พฤทธ์พาณิชย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พฤทธ์พาณิชย์ | Thailand |