Surname Erolfo (Erolfo 
) , worldwide, is a very rare cognomen. The last name Erolfo is habitual in Philippines, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Venezuela. Likewise, Erolfo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erolfo | Philippines, Mexico, United States, Ecuador, Venezuela |