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Globally, Халлер (Haller , Халлер , Khaller) is a rare gender-neutral forename. The given name Халлер is habitual in Romania, where it is a rare gender-neutral name, Switzerland, where it is a rare boy's name, and Austria, where it is a rare female name. Measured by absolute frequency, the name is most common in Romania, Italy, and China. Predominantly, Халлер is the last name as well as the forename.
Халлер is also a name for the fictitious and mythical characters: .