Last name Краинии (Краинии 
, Krainii 
) , throughout the world, is a very rare family name. The family name Краинии is habitual in Eastern Europe, particularly Belarus, where it is a very rare surname, Russia, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Краинии | Russia |
| Krainii | Russia, Ukraine, Belarus |