Last name 拉桑 (Lassen 
, 拉桑 
) , across the world, is a common cognomen. The cognomen 拉桑 is habitual in Denmark, where it is quite a common surname, Norway, where it is quite a rare surname, and Namibia. Measured by absolute frequency, this name is the most popular in Denmark, Germany, and the United States. Very seldom, 拉桑 is the forename as well as the last name.