Cognomen ワリン (Wallin 
, ワリン) , in the world, is a common last name. The family name ワリン is characteristic of Sweden, where it is a common surname, Finland, where it is quite a common surname, and Eswatini, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Sweden, the United States, and Finland. Very seldom, ワリン is the forename as well as the last name.