Cognomen Грдилян (Грдилян 
, Grdilian 
) , across the world, is a very rare family name. The surname Грдилян is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Грдилян | Russia |
| Grdilian | United States |