Worldwide, Kaoi (Kaoi 
) is a rare gender-neutral forename. The given name Kaoi is characteristic of Indonesia, where it is a very rare epicene name, and India, where it is an extremely rare gender-neutral name. Likewise, Kaoi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kaoi | Japan, Indonesia, Malaysia, Nigeria, India |