Last name Κλάους (Klaus 
, Κλάους) , all around the world, is a common surname. The family name Κλάους is characteristic of Western Europe, particularly Liechtenstein, where it is quite a common surname, Austria, and Germany (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Germany, the United States, and Brazil. More prevalently, Κλάους is the forename as well as the last name.