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Last name Weller (Weller , ולר , ويلر) , in the entire world, is a common family name. The surname Weller is characteristic of Bermuda, where it is quite a common surname, Germany, and Isle of Man (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, Germany, and the United Kingdom. Very seldom, Weller is the forename as well as the last name.