Family name Dilius (Дилюс 
, Dilius 
) , all over the world, is a very rare surname. The surname Dilius is habitual in Lithuania, where it is a rare surname, Malaysia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. In absolute terms, this name is the most popular in Lithuania, Russia, and Philippines. More prevalently, Dilius is the forename as well as the last name.