Across the world, Giangiulio (Giangiulio 
) is a very rare primarily boy's, but very seldom female given name. The forename Giangiulio is characteristic of Southern Europe, particularly Italy, where it is a very rare predominantly male, but very seldom feminine name. More prevalently, Giangiulio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giangiulio | Australia, Argentina, Italy, Brazil, United States |