Family name Hadjio (Hadjio 
) , around the globe, is a very rare surname. The cognomen Hadjio is characteristic of Czechia, where it is a rare surname, Germany, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Hadjio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hadjio | United States, United Kingdom, Germany, Czechia |