Cognomen Redgen (Redgen 
) , around the world, is a rare last name. The last name Redgen is habitual in Australia, where it is a rare surname, France, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Also, Redgen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Redgen | Australia, Philippines, France, United States, United Kingdom |