Family name Хуан Карлос (Хуан Карлос 
) , all around the world, is an extremely rare last name. Much more prevalently, Хуан Карлос is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Хуан Карлос | Russia |
Gian Carlo, Giancarlo, Giovanni Carlo, Jan Karol, Jean-Charles, Joan Carles, John Charles, João Carlos, Juan Carlos, Juan-Carlos, Xuan Karlos, Джанкарло, Жан-Шарль, and خوان كارلوس