Cognomen Khairul Nizam (Khairul Nizam 
) , around the world, is a rare last name. The family name Khairul Nizam is habitual in South-eastern Asia, particularly Malaysia, where it is quite a rare surname, and Singapore, where it is a rare surname. More frequently, Khairul Nizam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khairul Nizam | Malaysia, Singapore |