Cognomen Илхомджан (Илхомджан 
) , in all the world, is an extremely rare surname. The surname Илхомджан is habitual in Central Asia, particularly Kyrgyzstan, where it is a very rare surname. More prevalently, Илхомджан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Илхомджан | Kyrgyzstan, Kazakhstan, Russia |