In the world, Giustini (Giustini 
) is a very rare epicene given name. The forename Giustini is habitual in Italy, where it is a very rare gender-neutral name, and China, where it is an extremely rare male name. Much more prevalently, Giustini is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giustini | Italy, France, Canada, United States, Argentina |