Across the world, Sergio Dionisio (Sergio Dionisio 
) is a very rare boy's given name. The forename Sergio Dionisio is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare masculine name. Very seldom, Sergio Dionisio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sergio Dionisio | Chile, Spain, Peru, Philippines, Ecuador |
Agar, Narvai, and Soto Miranda