Cognomen 库珀 (Kuper 
, Couper 
, 库珀) , all around the world, is quite a common last name. The surname 库珀 is habitual in Solomon Islands, where it is quite a common surname, Netherlands, where it is quite a rare surname, and New Zealand. In absolute terms, the name is most common in the United States, Germany, and the United Kingdom. Much less frequently, 库珀 is the forename as well as the last name.