Cognomen พงศ์วณิชยา (พงศ์วณิชยา 
) , all around the world, is a very rare last name. The cognomen พงศ์วณิชยา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พงศ์วณิชยา | Thailand |
โสภา, and ศักดิ์สิทธิ์