Family name キアイ (Kiai 
, キアイ ) , around the globe, is quite a rare last name. The surname キアイ is habitual in Kenya, where it is quite a rare surname, Malaysia, where it is a rare surname, and Morocco. Measured by absolute frequency, it most frequently occurs in Kenya, Malaysia, and India. Very seldom, キアイ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kiai | Malaysia, Japan, Indonesia, India, Kenya |
| キアイ | Japan |