Surname ماسين (Masin 
, Masen 
, Maassen 
) , throughout the world, is a common family name. The last name ماسين is characteristic of Netherlands, where it is quite a common surname, El Salvador, where it is quite a rare surname, and Brunei. In absolute terms, it is the most numerous in Netherlands, Germany, and Italy. Much less frequently, ماسين is the forename as well as the last name.