Throughout the world, Kam Sing (Kam Sing 
) is a rare boy's forename. The forename Kam Sing is habitual in Hong Kong, where it is quite a rare masculine name, Malaysia, where it is a very rare boy's name, and China, where it is an extremely rare boy's name. Very seldom, Kam Sing is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kam Sing | China, Costa Rica, Malaysia, Hong Kong, Canada |