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Throughout the world, הייני (Haney , הייני ) is quite a common epicene forename. The first name הייני is characteristic of Turkey, where it is quite a rare girly name, Egypt, where it is quite a rare predominantly masculine, but very seldom girly name, and Kuwait, where it is quite a rare gender-neutral name. In absolute terms, it is the most numerous in Egypt, Turkey, and South Korea. More frequently, הייני is the last name as well as the forename.
הייני is also a name for the fictitious and mythical characters: .