Last name Koinova (Koinova 
, Коинова 
) , throughout the world, is a very rare surname. The surname Koinova is habitual in Russia, where it is a very rare surname, Kazakhstan, and Ukraine, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Russia, Kazakhstan, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Koinova | Russia, United States |
| Коинова | Kazakhstan, Russia, Ukraine |