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Last name Irenej (Irenej
, Ириней
, Иреней
) , all over the world, is a very rare family name. The last name Irenej is habitual in Slovenia, where it is a rare surname, and Bulgaria. More frequently, Irenej is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Irenej | Slovenia, Slovakia, Croatia, United States |
| Ириней | Kazakhstan, Russia, Bulgaria, Belarus, Ukraine |
| Иреней | Russia |