Family name Kongtabaek (Kongtabaek 
) , all around the world, is a very rare cognomen. The surname Kongtabaek is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kongtabaek | Thailand |
Somboon, Rattiya, and Phacharakorn