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Family name Walz (الز , Walz , Вальц ) , in the world, is a common last name. The last name Walz is characteristic of Western Europe, particularly Germany, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Austria. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Switzerland. Much less frequently, Walz is the forename as well as the last name.