Last name 博兰 (Bolan 
, 博兰 
, Boland 
) , all around the world, is a common cognomen. The family name 博兰 is characteristic of Belize, where it is quite a common surname, Ireland, and Australia. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Ireland. Very seldom, 博兰 is the forename as well as the last name.