Family name ศิลาเดช (ศิลาเดช 
, Siladet , Siladech ) , throughout the world, is a rare cognomen. The cognomen ศิลาเดช is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ศิลาเดช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siladech, Siladet, ศิลาเดช | Thailand |