Family name Korob (Korob 
, Короб 
) , in the world, is quite a rare last name. The cognomen Korob is habitual in Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Estonia. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Belarus, Russia, and Ukraine. Much less frequently, Korob is the forename as well as the last name.