Family name غمجن (غمجن 
) , around the world, is a rare cognomen. The cognomen غمجن is habitual in Afghanistan, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Turkey, where it is an extremely rare surname. Likewise, غمجن is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| غمجن | Afghanistan, Turkey, Saudi Arabia |