Surname שמוץ (Schmutz 
, שמוץ 
) , in the entire world, is quite a common family name. The surname שמוץ is characteristic of Western Europe, particularly Switzerland, where it is quite a common surname, Austria, where it is quite a rare surname, and Germany. In absolute terms, this name is the most popular in Switzerland, Germany, and the United States. Much less frequently, שמוץ is the forename as well as the last name.