Family name คงคา (คงคา 
, Kongka 
, Khongkha 
) , around the world, is quite a rare cognomen. The last name คงคา is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Laos, where it is a rare surname, and Cambodia, where it is a very rare surname. Likewise, คงคา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| คงคา | Thailand |
| Kongka | Thailand, United States, South Africa, India, New Zealand |
| Khongkha | Laos, United States, Thailand, Myanmar |
| Khongka | India, Thailand, Cambodia |