Cognomen Irwan Syah (Irwan Syah 
) , worldwide, is a very rare last name. The last name Irwan Syah is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname. More prevalently, Irwan Syah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Irwan Syah | Malaysia |