All over the world, สายศิล (สายศิล 
) is a very rare largely female, but infrequently boy's forename. The given name สายศิล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare epicene name. Very seldom, สายศิล is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สายศิล | Thailand |