Last name ييلين (Jelen 
, Yellin 
, ييلين) , globally, is quite a common cognomen. The cognomen ييلين is characteristic of Slovenia, where it is quite a common surname, Czechia, and Slovakia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in the United States, Slovenia, and Poland. Also, ييلين is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jelen | Germany, Czechia, Poland, United States, Slovenia |
| Yellin | Myanmar, Germany, Philippines, Argentina, United States |