All around the world, Julio Diego (Julio Diego 
) is a very rare male forename. The forename Julio Diego is characteristic of Peru, where it is a rare masculine name, Chile, and Spain, where it is a very rare boy's name. Much less frequently, Julio Diego is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Julio Diego | Spain, Peru, Chile, Ecuador, Costa Rica |