Surname Kayoung (Kayoung 
) , across the world, is a rare family name. The last name Kayoung is characteristic of South Korea, where it is a rare surname, China, where it is an extremely rare surname, and the United States. More prevalently, Kayoung is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kayoung | China, South Korea, Nigeria, United States, Canada |