In the entire world, Cornelio Juan (Cornelio Juan 
) is a very rare masculine first name. The first name Cornelio Juan is characteristic of Latin America and the Caribbean, particularly Peru, where it is a rare boy's name. Much less frequently, Cornelio Juan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cornelio Juan | Peru, Ecuador, Chile, Costa Rica |