Family name Серен (Ceren 
, Seren 
, Serenus 
) , all around the world, is a common surname. The cognomen Серен is characteristic of El Salvador, where it is quite a common surname, Turkey, and Honduras. More prevalently, Серен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ceren | El Salvador, Turkey, Indonesia, Colombia, Honduras |
| Seren | Turkey, Indonesia, Syria, India, Honduras |
| Serenus | Democratic Republic of the Congo, France, United States, Israel, India |
| Серен | Kyrgyzstan, Russia, Kazakhstan, Ukraine, Armenia |