Cognomen Gareni (Gareni 
) , in all the world, is a very rare last name. The cognomen Gareni is characteristic of France, where it is a very rare surname, Italy, where it is an extremely rare surname, and Mexico. Measured by absolute frequency, the name is most common in France, India, and Italy. Very seldom, Gareni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gareni | Italy, Mexico, United States, India, France |