Cognomen Kandaiyah (Kandaiyah 
) , throughout the world, is a rare surname. The family name Kandaiyah is habitual in Sri Lanka, where it is a rare surname, Malaysia, and Canada, where it is an extremely rare surname. Much less frequently, Kandaiyah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kandaiyah | Canada, Malaysia, India, United States, Sri Lanka |