Surname ปฐมนามวงศ์ (ปฐมนามวงศ์ 
) , in the entire world, is an extremely rare cognomen. The surname ปฐมนามวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปฐมนามวงศ์ | Thailand |