Cognomen 재우 (재우 
, Jae-Woo 
, Jaeu 
) , in the entire world, is a very rare last name. The last name 재우 is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Much more frequently, 재우 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 재우 | South Korea |
| Jae-Woo | South Korea, United States |
| Jaeu | South Korea, Malaysia, Philippines, United States, India |