Surname Khamsing (Khamsing 
) , in the entire world, is a rare family name. The cognomen Khamsing is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, Singapore, where it is a rare surname, and Thailand. More frequently, Khamsing is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khamsing | Laos, India, Singapore, Thailand, United States |