Cognomen แสงเพชร (แสงเพชร 
, Saengphet 
, Sangphet 
) , globally, is quite a rare last name. The surname แสงเพชร is habitual in Thailand, where it is quite a rare surname, Philippines, where it is an extremely rare surname, and the United States. Also, แสงเพชร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสงเพชร | Thailand |
| Saengphet | United States, United Kingdom, Thailand, Australia |
| Sangphet | Argentina, United States, Thailand |
| Sangpet | Malaysia, United States, Thailand, Philippines |
Saengpechak, Saengpet, Saengpetch, Saengpeth, Saengpget, Saengphech, Saengpheton, Saengphetr, Sanengpetch, Sangaphet, Sangpech, Sangpecth, Sangpetch, Sangpetcth, Sangpetoon, Sangpetr, Sangphech, Sangphetch, Seangpech, Seangpetch, Seangpetr, Seangphet, Sengpetch, Sengphet, Sengpheth, and Sungphet
| แสงเพชร ส.สกุลภัณฑ์ TH |
|