Family name Джен (Jen 
, Djen 
, Джен 
) , globally, is a common cognomen. The family name Джен is habitual in Cayman Islands, where it is quite a common surname, Malaysia, and Suriname. In absolute terms, it is commonest in Malaysia, India, and Indonesia. More frequently, Джен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jen | Australia, Malaysia, Indonesia, United States, India |
| Djen | Nigeria, Philippines, Indonesia, United States, Algeria |
| Джен | Bulgaria, Kazakhstan, Russia, Ukraine |
| Dzhen | Russia |