Cognomen Silvio Augusto (Silvio Augusto 
) , globally, is an extremely rare last name. The cognomen Silvio Augusto is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Silvio Augusto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silvio Augusto | Portugal, Peru, Chile, Ecuador, Brazil |