Last name เบญจเพ็ญกุล (เบญจเพ็ญกุล 
) , worldwide, is an extremely rare family name. The surname เบญจเพ็ญกุล is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| เบญจเพ็ญกุล | Thailand |