Cognomen Riedwan (Riedwan 
) , in all the world, is a rare last name. The family name Riedwan is habitual in Ethiopia, where it is a very rare surname, Indonesia, and Malaysia, where it is an extremely rare surname. Likewise, Riedwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riedwan | Malaysia, Ethiopia, Indonesia, South Africa |