Cognomen Koroba (Koroba 
, Короба 
) , worldwide, is a rare last name. The cognomen Koroba is habitual in Kenya, where it is a rare surname, the Democratic Republic of the Congo, and Russia, where it is a very rare surname. Very seldom, Koroba is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koroba | Poland, Kenya, Nigeria, India, Democratic Republic of the Congo |
| Короба | Russia, Ukraine |