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All around the world, Халдин (Haldin , Халдин , Khaldin ) is a rare male first name. The given name Халдин is characteristic of Azerbaijan, where it is quite a rare masculine name, the Democratic Republic of the Congo, where it is a rare male name, and Kazakhstan, where it is a very rare boy's name. In absolute terms, it is commonest in the Democratic Republic of the Congo, Azerbaijan, and India. Likewise, Халдин is the last name as well as the forename.
Халдин is also a name for the fictitious and mythical characters: Xaldin , the fictional character from Kingdom Hearts series, Kingdom Hearts II.