Surname همدان (Hamdan 
, همدان 
, Hmdan 
) , globally, is a widespread last name. The surname همدان is habitual in Lebanon, where it is a common surname, Malaysia, and Syria, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is commonest in Malaysia, Lebanon, and Indonesia. Likewise, همدان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hamdan | Indonesia, Saudi Arabia, Syria, Lebanon, Malaysia |
| همدان | Iran, Saudi Arabia, Yemen, Oman, Iraq |
| Hamadan, Hmdan | Saudi Arabia, Syria, Egypt, Lebanon, Malaysia |