Surname Серхан (Serhan 
, Serxan 
, Sirhan 
) , across the world, is a common cognomen. The surname Серхан is habitual in Western Asia, particularly Lebanon, where it is quite a common surname, Kuwait, and United Arab Emirates, where it is quite a rare surname. In absolute terms, it is commonest in Lebanon, Morocco, and Saudi Arabia. Likewise, Серхан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Serhan | Turkey, Azerbaijan, Saudi Arabia, Morocco, Lebanon |
| Serxan | Turkey, Azerbaijan, Russia, United Kingdom, United States |
| Sirhan | Turkey, Saudi Arabia, United Arab Emirates, Lebanon, Jordan |
| Серхан | Kazakhstan, Russia, Kyrgyzstan, Bulgaria, Ukraine |