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 | Malaysia, Australia, India, United States, Indonesia |
| Djen | Philippines, Algeria, Nigeria, United States, Indonesia |
| Джен | Bulgaria, Russia, Kazakhstan, Ukraine |
| Dzhen | Russia |