Cognomen Онофрио (Onofrio 
, Онофрио 
) , around the globe, is quite a rare family name. The last name Онофрио is characteristic of Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and Peru. Not in comparison with a country's population, this name is the most popular in the United States, Italy, and Brazil. More prevalently, Онофрио is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onofrio | Germany, Italy, United States, Argentina, Brazil |
| Онофрио | Russia |