Cognomen Далхан (Далхан 
, Dalkhan 
) , in the world, is a very rare last name. The surname Далхан is characteristic of Saint Lucia, where it is quite a common surname, Kazakhstan, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Saint Lucia, India, and Kazakhstan. Very seldom, Далхан is the forename as well as the last name.