Last name คำตา (Khamta 
, Kwamta 
, คำตา) , in all the world, is a rare cognomen. The surname คำตา is habitual in Thailand, where it is quite a rare surname, Norway, where it is a very rare surname, and Australia. Measured by absolute frequency, it most frequently occurs in Thailand, Nigeria, and India. Likewise, คำตา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khamta | Laos, Australia, India, Thailand, United States |
| Kwamta | India, Nigeria |