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Cognomen Ott (Ott , 奥特 , Отт , along with others...) , in the entire world, is a common surname. The last name Ott is characteristic of Western Europe, particularly Liechtenstein, where it is quite a common surname, Switzerland, and Germany (explore the name in all countries). In absolute terms, the name is most common in Germany, the United States, and France. Very seldom, Ott is the forename as well as the last name.