Family name ศิลวัฒน์ (Silawat 
, ศิลวัฒน์ ) , all over the world, is a rare cognomen. The family name ศิลวัฒน์ is characteristic of Saudi Arabia, where it is a rare surname, United Arab Emirates, and Thailand, where it is a very rare surname. Not in comparison with a country's population, it is commonest in India, Saudi Arabia, and Pakistan. Very seldom, ศิลวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silawat | Thailand, United Arab Emirates, Pakistan, India, Saudi Arabia |
| ศิลวัฒน์ | Thailand |