Surname Клеменц (Klements 
, Клеменц 
, Klementz 
) , all around the world, is a rare family name. The surname Клеменц is characteristic of Austria, where it is a rare surname, Hungary, and Germany. In absolute terms, this name is the most popular in Germany, the United States, and Austria. Very seldom, Клеменц is the forename as well as the last name.