Surname Sergio Leoncio (Sergio Leoncio 
) , across the world, is a very rare family name. The last name Sergio Leoncio is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Sergio Leoncio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergio Leoncio | Mexico, Chile, Peru, Ecuador |
Gomez, Salinas, Vergara, and Barra Carrasco