Cognomen Bolun (博伦 
, 伯伦 , Bolun 
) , all around the world, is quite a rare family name. The last name Bolun is characteristic of Moldova, where it is quite a rare surname, Croatia, where it is a rare surname, and Romania. In absolute terms, it is the most numerous in China, Moldova, and Turkey. More prevalently, Bolun is the forename as well as the last name.