Family name Seminovich (Seminovich 
, Семинович 
) , throughout the world, is a very rare cognomen. The cognomen Seminovich is habitual in Belarus, where it is a very rare surname, Kyrgyzstan, and Ukraine. In absolute terms, it most frequently occurs in Eastern Europe, particularly Russia, Ukraine, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Seminovich | Argentina, United States |
| Семинович | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |