Family name Sergio Reginaldo (Sergio Reginaldo 
) , in the world, is an extremely rare surname. The surname Sergio Reginaldo is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Sergio Reginaldo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergio Reginaldo | Peru, Chile |