Family name Kalliroi (Kalliroi 
) , in the world, is quite a rare cognomen. The last name Kalliroi is habitual in Southern Europe, particularly Greece, where it is quite a common surname, and Spain, where it is an extremely rare surname. Also, Kalliroi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalliroi | Spain, Greece, Bulgaria, United States, South Africa |
Callirhoe, Calliroe, Callirrhoe, Kalliroe, and Kalliroï