Cognomen Sapphaya (Sapphaya 
) , all over the world, is an extremely rare surname. The last name Sapphaya is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Sapphaya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sapphaya | Thailand |
Korpaisarn, Phasomsap, and Chanthakhun