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