Surname דחלאן (Dahlan 
, דחלאן 
) , in the entire world, is a common cognomen. The family name דחלאן is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Brunei, and Indonesia. Not in comparison with a country's population, it most frequently occurs in Indonesia, Malaysia, and Saudi Arabia. Very seldom, דחלאן is the forename as well as the last name.