Last name 賀蘭 (Holland 
, 하란 
, 賀蘭 
) , in the world, is a widespread surname. The last name 賀蘭 is characteristic of British Virgin Islands, where it is quite a common surname, Isle of Man, and Ireland (explore the name in all countries). Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Australia. Much less frequently, 賀蘭 is the forename as well as the last name.