Surname Washen (Waswas 
, Washen 
) , in all the world, is a rare family name. The family name Washen is habitual in Jordan, where it is a rare surname, Ethiopia, where it is a very rare surname, and Canada. Measured by absolute frequency, it is the most numerous in Ethiopia, Jordan, and Germany. Much less frequently, Washen is the forename as well as the last name.