Cognomen สอนเพชร (สอนเพชร 
) , all around the world, is a very rare last name. The cognomen สอนเพชร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, สอนเพชร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สอนเพชร | Thailand |