Cognomen เพ็ญศุกร์ (เพ็ญศุกร์ 
) , across the world, is an extremely rare family name. The last name เพ็ญศุกร์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, เพ็ญศุกร์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เพ็ญศุกร์ | Thailand |