Family name Деген (Degen 
, Деген 
, Deguen 
) , throughout the world, is a common surname. The family name Деген is characteristic of Western Europe, particularly Switzerland, where it is quite a common surname, Germany, where it is quite a rare surname, and Austria. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Switzerland. Much less frequently, Деген is the forename as well as the last name.