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Family name Ritter (Ritter , 里特 , Ріттер, and others...) , worldwide, is a common last name. The last name Ritter is characteristic of Western Europe, particularly Liechtenstein, where it is a widespread surname, Germany, where it is quite a common surname, and Switzerland (explore the name in all countries). In absolute terms, the name is most common in Germany, the United States, and Brazil. Very seldom, Ritter is the forename as well as the last name.