Cognomen Gianni-Niamani (Gianni-Niamani 
) , around the globe, is an extremely rare family name. Much more frequently, Gianni-Niamani is the forename as well as the last name. Parts of the name also exists independently as a first name Gianni, and a last name Niamani.
| VARIANT | COUNTRY |
|---|---|
| Gianni-Niamani | United States |