Surname Kunathai (Kunathai 
) , in the world, is a very rare last name. The last name Kunathai is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Kunathai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kunathai | United States, Thailand |