Surname Silac (Silac 
) , globally, is a rare cognomen. The last name Silac is characteristic of Philippines, where it is a rare surname, Tanzania, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Silac is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silac | United States, India, Philippines, Tanzania |