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Surname Hammerle (Hammerle ) , across the world, is quite a rare family name. The cognomen Hammerle is habitual in Western Europe, particularly Liechtenstein, where it is quite a common surname, Austria, and Switzerland, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Austria, the United States, and Switzerland. Much less frequently, Hammerle is the forename as well as the last name.