Last name Bolkun (Bolkun 
, Болкун 
) , throughout the world, is a rare cognomen. The family name Bolkun is characteristic of Ukraine, where it is quite a rare surname, Belarus, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Ukraine, Russia, and Belarus. Much less frequently, Bolkun is the forename as well as the last name.