Cognomen Валлин (Vallin 
, Wallin , Валлин 
) , worldwide, is a common surname. The last name Валлин is characteristic of Northern Europe, particularly Sweden, where it is a common surname, Finland, where it is quite a common surname, and Denmark, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Sweden, the United States, and France. Very seldom, Валлин is the forename as well as the last name.