Surname Kosarinov (Kosarinov 
, Косаринов 
) , around the globe, is a very rare last name. The last name Kosarinov is habitual in Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kosarinov | Russia |
| Косаринов | Russia, Ukraine |