Cognomen Khumsing (Khumsing 
) , around the world, is a very rare last name. The surname Khumsing is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Khumsing is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khumsing | India, Thailand |