Cognomen Ир-Сен (Ир-Сен 
) , around the world, is an extremely rare last name. Much more frequently, Ир-Сен is the forename as well as the last name. Parts of the name also exists independently as a first name Ир, and a first name Сен.
| VARIANT | COUNTRY |
|---|---|
| Ир-Сен | Kyrgyzstan, Kazakhstan, Russia |