Family name Jefferson Emilio (Jefferson Emilio 
) , throughout the world, is an extremely rare last name. The cognomen Jefferson Emilio is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more prevalently, Jefferson Emilio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jefferson Emilio | Peru, Chile, Ecuador, Costa Rica |