Last name เพ็ญเลิศ (เพ็ญเลิศ 
) , all over the world, is an extremely rare cognomen. The cognomen เพ็ญเลิศ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, เพ็ญเลิศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เพ็ญเลิศ | Thailand |