Surname ارجن (Ardjan 
, Ergen 
, ارجن 
) , all around the world, is a common last name. The surname ارجن is characteristic of Turkey, where it is quite a common surname, Albania, where it is quite a rare surname, and Belgium, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Turkey, Indonesia, and Germany. Very seldom, ارجن is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ardjan | Indonesia, Philippines, Greece, Italy, Albania |
| Ergen | Greece, Albania, Germany, Turkey, United States |
| ارجن | Iraq |