Surname Ділан (Dilan 
, Ділан 
) , in the world, is a common family name. The cognomen Ділан is habitual in Sri Lanka, where it is quite a common surname, Moldova, where it is quite a rare surname, and Puerto Rico. Not in comparison with a country's population, the name is most common in Sri Lanka, Indonesia, and Philippines. More prevalently, Ділан is the forename as well as the last name.