Last name אוסן (Oseen 
, Aasen 
, אוסן 
) , across the world, is quite a common cognomen. The surname אוסן is habitual in Norway, where it is a common surname, Sweden, where it is quite a rare surname, and Canada. In absolute terms, it most frequently occurs in Norway, the United States, and Canada. Very seldom, אוסן is the forename as well as the last name.