Surname พฤทธิกุล (พฤทธิกุล 
) , in all the world, is a very rare cognomen. The family name พฤทธิกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พฤทธิกุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พฤทธิกุล | Thailand |