Around the globe, Giustinian (Giustinian 
) is an extremely rare male given name. Predominantly, Giustinian is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giustinian | Argentina, United States, Venezuela, Italy, Peru |
|
marcantonio giustinian Doge of Venice, IT (b. 1619) |
|
| zorzi giustinian Venetian ambassador in London from 1606 to 1608 |
|