Cognomen Radulfo (Radulfo 
) , worldwide, is a very rare last name. The last name Radulfo is characteristic of Latin America and the Caribbean, particularly Venezuela, where it is a very rare surname, Mexico, and Honduras. Also, Radulfo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Radulfo | Peru, Philippines, Venezuela, United States, Mexico |