Surname اولين (Olin 
, اولين 
, Aulin 
) , worldwide, is a common cognomen. The last name اولين is habitual in Northern Europe, particularly Sweden, where it is quite a common surname, Finland, and Denmark, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in the United States, Sweden, and Indonesia. Also, اولين is the forename as well as the last name.