Family name ศิลาเพชร (Silaphet 
, ศิลาเพชร ) , all over the world, is quite a rare cognomen. The last name ศิลาเพชร is characteristic of Laos, where it is quite a common surname, Thailand, where it is a rare surname, and Canada, where it is a very rare surname. In absolute terms, it most frequently occurs in Laos, Thailand, and the United States. Very seldom, ศิลาเพชร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silaphet | Canada, Thailand, Laos, United States, Malaysia |
| ศิลาเพชร | Thailand |