Last name Bolyn (Bolyn 
, Болин 
) , throughout the world, is a rare cognomen. The surname Bolyn is habitual in Belgium, where it is a rare surname, Netherlands, where it is a very rare surname, and the United States. In absolute terms, it is the most numerous in the United States, Russia, and Belgium. Very seldom, Bolyn is the forename as well as the last name.