Family name Jaiwoo (Jaiwoo 
) , in the entire world, is an extremely rare surname. The last name Jaiwoo is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Predominantly, Jaiwoo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaiwoo | South Korea, United States, Canada, Thailand |