Surname Kuntsevych (Кунцевич 
, Kuntsevych , Кунцэвіч) , throughout the world, is quite a common last name. The last name Kuntsevych is habitual in Belarus, where it is quite a common surname, Russia, where it is quite a rare surname, and Kazakhstan. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Belarus, Russia, and Ukraine.