Globally, แพงเพชร (Paungpet 
, แพงเพชร , Paungpetch 
) is a very rare dominantly male, but uncommonly female first name. The forename แพงเพชร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare largely masculine, but uncommonly female name. Likewise, แพงเพชร is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| แพงเพชร, Paungpet, Paengphet | Thailand |
| Paungpetch | United States, Thailand |
Diamond, Paengpetch, Paungpeth, and Phaengphet