Family name Iavian (Iavian 
, Явьян 
) , worldwide, is a very rare last name. The family name Iavian is habitual in Eastern Europe, particularly Russia, where it is a very rare surname. Much less frequently, Iavian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iavian | United States |
| Явьян | Russia |