Cognomen ศิลาภา (Silapa 
, ศิลาภา ) , in the world, is a rare surname. The surname ศิลาภา is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, Indonesia, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Thailand, India, and Indonesia. More prevalently, ศิลาภา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silapa | Malaysia, India, Thailand, Indonesia, Philippines |
| ศิลาภา | Thailand |