Cognomen 索格 (Sorg 
, 索格 
) , across the world, is quite a common family name. The surname 索格 is characteristic of Western Europe, particularly Switzerland, where it is quite a rare surname, Germany, and Luxembourg. Not in comparison with a country's population, the name is most common in Germany, the United States, and Switzerland. Much less frequently, 索格 is the forename as well as the last name.