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 | Turkey, Indonesia, Honduras, El Salvador, Colombia |
| Seren | Turkey, Indonesia, Syria, Honduras, India |
| Serenus | United States, India, France, Israel, Democratic Republic of the Congo |
| Серен | Kazakhstan, Armenia, Russia, Kyrgyzstan, Ukraine |