Surname Jaehwan (Jaehwan 
) , in the entire world, is a rare family name. The surname Jaehwan is characteristic of Malaysia, where it is a rare surname, South Korea, and Poland, where it is a very rare surname. In absolute terms, it is commonest in South Korea, Malaysia, and China. More prevalently, Jaehwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaehwan | Malaysia, China, South Korea, Indonesia, United States |