Surname Йерен (Jeren 
, Ieren 
, Yeren 
) , across the world, is quite a rare cognomen. The last name Йерен is characteristic of Peru, where it is quite a rare surname, Croatia, and Slovenia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Peru, Nigeria, and Turkey. Also, Йерен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jeren | Turkmenistan, Philippines, Croatia, Ethiopia, Nigeria |
| Ieren | Philippines, Spain, Nigeria, United States, India |
| Yeren | China, Nigeria, United States, Turkey, Peru |
| Йерен | Russia |