Surname 库林 (Cooling 
, 库林, Couling 
) , throughout the world, is quite a rare cognomen. The cognomen 库林 is habitual in Northern Europe, particularly Isle of Man, where it is quite a rare surname, Ireland, and the United Kingdom. In absolute terms, it is the most numerous in the United Kingdom, the United States, and Australia. Very seldom, 库林 is the forename as well as the last name.