Family name Кустанович (Кустанович 
, Kustanovych 
) , throughout the world, is a rare surname. The last name Кустанович is characteristic of Belarus, where it is quite a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine. In absolute terms, it is commonest in Eastern Europe, particularly Belarus, Russia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Кустанович | Kazakhstan, Russia, Ukraine, Belarus |
| Kustanovych | United States |
| кустанович, дмитрий александрович Russian artist, BY (b. 1970) |
|