Family name Dionisio Alfonso (Dionisio Alfonso 
) , in all the world, is an extremely rare surname. The surname Dionisio Alfonso is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Dionisio Alfonso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dionisio Alfonso | Chile, Peru, Ecuador, Philippines, Spain |