Family name เพ็งแก้ว (เพ็งแก้ว, Pengkeaw 
, Phengkaeo ) , worldwide, is a very rare last name. The surname เพ็งแก้ว is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phengkaeo, Pengkeaw | Thailand |
Penginkaew, Pengkaew, Pengkaow, and Phengkeaw
| ล้อม เพ็งแก้ว TH |
|