Surname Grigorjanc (Григорянц 
, Grigorjanc 
) , globally, is a rare last name. The last name Grigorjanc is characteristic of Lithuania, where it is a rare surname, Russia, and Ukraine. Much less frequently, Grigorjanc is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Григорянц | Kazakhstan, Armenia, Russia, Ukraine |
| Grigorjanc | Lithuania |