Cognomen Дилье (Dillier 
, Дилье 
) , throughout the world, is quite a rare family name. The surname Дилье is habitual in Western Europe, particularly Liechtenstein, where it is quite a common surname, Switzerland, and Austria, where it is a rare surname. Not in comparison with a country's population, it is commonest in Switzerland, the United States, and France. Very seldom, Дилье is the forename as well as the last name.