Surname แก่นคูน (แก่นคูน, Kaenkhoon 
) , in the world, is a very rare family name. The last name แก่นคูน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaenkhoon | Thailand |
| มนต์แคน แก่นคูน Thai male singer, TH (b. 1973) |
|