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Worldwide, מולדר (Mulder , Moulder , מולדר ) is a rare unisex first name. The forename מולדר is characteristic of Indonesia, where it is a very rare gender-neutral name, South Africa, and the United States, where it is an extremely rare epicene name. In absolute terms, it is the most numerous in Indonesia, China, and South Africa. Much more frequently, מולדר is the last name as well as the forename.
מולדר is also a name for the fictitious and mythical characters: .