Cognomen Khoidum (Khoidum 
) , all over the world, is a rare last name. The surname Khoidum is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. Very seldom, Khoidum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khoidum | India |
Sairem, Mairembam, and Moirangthem