Cognomen Dangan (Dangan 
, 丹根 
) , throughout the world, is quite a rare last name. The surname Dangan is habitual in Philippines, where it is quite a rare surname, Oman, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, this name is the most popular in South-eastern Asia, particularly Philippines, Malaysia, and Indonesia. Much less frequently, Dangan is the forename as well as the last name.