Cognomen Ivanovitsch (Иванович 
, Ivanovitsch 
) , in the world, is a common family name. The surname Ivanovitsch is habitual in Kazakhstan, where it is a common surname, Belarus, where it is quite a rare surname, and Moldova. Not in comparison with a country's population, it most frequently occurs in Kazakhstan, Russia, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Иванович | Russia, Kazakhstan, Belarus, Moldova, Armenia |
| Ivanovitsch | Brazil, Germany |