Cognomen Caroi (Caroi 
) , in all the world, is a rare last name. The last name Caroi is habitual in Romania, where it is a rare surname, Italy, where it is a very rare surname, and Venezuela. Very seldom, Caroi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Caroi | Romania, Spain, Venezuela, Italy, United States |