Surname Гаркович (Гаркович 
, Garkovich 
) , throughout the world, is a rare cognomen. The surname Гаркович is habitual in Eastern Europe, particularly Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine. In absolute terms, it most frequently occurs in Belarus, the United States, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Гаркович | Russia, Ukraine, Belarus |
| Garkovich | Canada, Russia, United States, Belarus |