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 | Nigeria, Ethiopia, Philippines, Turkmenistan, Croatia |
| Ieren | Nigeria, Spain, Philippines, United States, India |
| Yeren | Nigeria, Turkey, Peru, China, United States |
| Йерен | Russia |