Family name オット (Ott 
, Ottó 
, オット) , across the world, is a common cognomen. The family name オット is habitual in Western Europe, particularly Liechtenstein, where it is quite a common surname, Switzerland, and Germany (explore the name in all countries). Measured by absolute frequency, the name is most common in Germany, the United States, and France. Very seldom, オット is the forename as well as the last name.