Cognomen Hairulnizam (Hairulnizam 
) , globally, is a rare last name. The cognomen Hairulnizam is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, and Singapore. More prevalently, Hairulnizam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hairulnizam | Malaysia, Singapore |