Family name Jjoan (Jjoan 
) , in the world, is an extremely rare last name. The surname Jjoan is characteristic of Latin America and the Caribbean, particularly Peru, where it is an extremely rare surname. More prevalently, Jjoan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jjoan | Peru, Philippines, Andorra, United Kingdom, United States |