Surname Juior (Juior 
) , in the world, is a very rare family name. The cognomen Juior is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname, Peru, and Mexico. More prevalently, Juior is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juior | Brazil, Mexico, United States, Peru, Democratic Republic of the Congo |