Cognomen Radjen (Radjen 
) , around the world, is a rare surname. The cognomen Radjen is characteristic of Southern Europe, particularly Serbia, where it is quite a rare surname, Bosnia and Herzegovina, and Croatia, where it is a very rare surname. In absolute terms, this name is the most popular in Serbia, Bosnia and Herzegovina, and Indonesia. Likewise, Radjen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Radjen | Bosnia and Herzegovina, Serbia, Suriname, Netherlands, Indonesia |
| danilo radjen American soccer player, US (b. 1994) |
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