Family name Kortrakoon (Kortrakoon 
) , in all the world, is a very rare cognomen. The surname Kortrakoon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kortrakoon | Thailand |
Phanomol, Nattakan, Nattaphong, and Nuengruethai