Cognomen Sopen (Sopen 
) , in all the world, is a rare surname. The cognomen Sopen is characteristic of Bulgaria, where it is quite a rare surname, and India, where it is an extremely rare surname. More frequently, Sopen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sopen | Philippines, Thailand, Bulgaria, United States, India |