Surname Khemsup (Khemsup 
) , all around the world, is a very rare cognomen. The cognomen Khemsup is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khemsup | Thailand |
Suchunya, Kamolwan, Rawipreeya, and Chanannath