Family name Gio Gio (Gio Gio 
) , in the entire world, is a very rare cognomen. The cognomen Gio Gio is characteristic of Southern Europe, particularly Italy, where it is a very rare surname. More frequently, Gio Gio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gio Gio | Italy |