Cognomen 재신 (재신 
, Jaesin 
, Jae-Shin 
) , around the globe, is a very rare family name. The surname 재신 is habitual in China, where it is an extremely rare surname, and the United States. Much more prevalently, 재신 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 재신 | South Korea |
| Jaesin | China, Indonesia, South Korea, United States, India |
| Jae-Shin | Canada, United States |