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Family name Aust (Aust
, Ауст
, Austr
) , in all the world, is a common last name. The last name Aust is characteristic of Fiji, where it is quite a common surname, Germany, where it is quite a rare surname, and Paraguay. In absolute terms, the name is most common in Germany, the United States, and Bangladesh. Much less frequently, Aust is the forename as well as the last name.