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