Last name Rapen (Rape 
, Rapen 
) , across the world, is quite a rare surname. The family name Rapen is habitual in Slovenia, where it is quite a rare surname, Philippines, where it is a rare surname, and the United States. Measured by absolute frequency, it is the most numerous in the United States, Philippines, and Indonesia. Much less frequently, Rapen is the forename as well as the last name.