Surname Ианович (Ианович, Yanovych 
, Ianovich 
) , throughout the world, is a rare last name. The last name Ианович is characteristic of Hungary, where it is a rare surname, Czechia, and Greece, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Brazil, Argentina, and Hungary.
| VARIANT | COUNTRY |
|---|---|
| Yanovych | Ukraine, United Kingdom, United States, Czechia, Greece |
| Ianovich | Brazil, Hungary, Argentina, United States, Israel |
| Ianovitch | France, Brazil, United States |