Family name Kirejko (Kirejko, Кирейко 
) , in the world, is a rare cognomen. The cognomen Kirejko is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Ukraine, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Кирейко | Kazakhstan, Russia, Ukraine, Belarus |
| witali dmytrovyč kirejko 1926 (b. 1926) |
|