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