Cognomen พวงเพ็ชร (พวงเพ็ชร 
, Phuangphet 
, Puangpet ) , all over the world, is quite a rare surname. The family name พวงเพ็ชร is habitual in Thailand, where it is quite a rare surname, Malaysia, where it is a rare surname, and France, where it is an extremely rare surname. Likewise, พวงเพ็ชร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พวงเพ็ชร | Thailand |
| Phuangphet | Philippines, Thailand, France, United States, Malaysia |
| Puangphet, Puangpet | Thailand, United States |
Phuangpech, and Puangpepch