Family name ディル (Dill 
, ディル 
) , across the world, is a common last name. The cognomen ディル is characteristic of Bermuda, where it is quite a common surname, Liechtenstein, and Switzerland, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and Brazil. Very seldom, ディル is the forename as well as the last name.