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