Worldwide, Фаинна (Фаинна 
, Fainna 
) is a very rare predominantly female, but very seldom male first name. The first name Фаинна is habitual in Eastern Europe, particularly Russia, where it is a very rare girly name. Much less frequently, Фаинна is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Фаинна | Kazakhstan, Russia |
| Fainna | United States, India, France, Brazil, Venezuela |