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