Surname 德蒙特 (Demonte 
, Demont 
, 德蒙特) , across the world, is quite a common cognomen. The surname 德蒙特 is habitual in Western Europe, particularly Switzerland, where it is quite a rare surname, France, and Belgium. Not in comparison with a country's population, the name is most common in France, the United States, and Argentina. Much less frequently, 德蒙特 is the forename as well as the last name.