Family name Kamwai (Kamwai 
) , in the world, is a rare cognomen. The family name Kamwai is habitual in Taiwan, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia. Also, Kamwai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kamwai | Malaysia, Hong Kong, Taiwan, Thailand, India |