Cognomen Крантц (Krantz 
, Крантц 
) , all over the world, is a common family name. The cognomen Крантц is habitual in Sweden, where it is quite a common surname, Malta, where it is quite a rare surname, and Luxembourg. In absolute terms, it is commonest in the United States, Sweden, and Germany. Much less frequently, Крантц is the forename as well as the last name.