>
Family name Maasen (Maasen , Маассен ) , in the world, is a rare last name. The cognomen Maasen is characteristic of Estonia, where it is quite a rare surname, Netherlands, where it is a rare surname, and Belgium. Measured by absolute frequency, the name is most common in the United States, Netherlands, and Germany. Very seldom, Maasen is the forename as well as the last name.