Cognomen Siveraj (Siveraj 
) , in the entire world, is an extremely rare surname. The last name Siveraj is characteristic of Sub-Saharan Africa, particularly South Africa, where it is a very rare surname. More prevalently, Siveraj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siveraj | Malaysia, India, South Africa |