Last name Іреней-Семен (Іреней-Семен 
) , all around the world, is an extremely rare cognomen. Predominantly, Іреней-Семен is the forename as well as the last name. Parts of the name also exists independently as a first name Іреней, and a first name Семен.
| VARIANT | COUNTRY |
|---|---|
| Іреней-Семен | Ukraine |