Cognomen Sergio Erwin (Sergio Erwin 
) , across the world, is a very rare last name. The family name Sergio Erwin is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname. More frequently, Sergio Erwin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergio Erwin | Peru, Chile |