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All over the world, 海顿 (Haydn , Hadden , 海顿 ) is quite a rare masculine first name. The forename 海顿 is habitual in Australia, where it is quite a rare boy's name, the United Kingdom, and Hong Kong, where it is a rare masculine name. Measured by absolute frequency, it is commonest in the United Kingdom, Australia, and the United States. Likewise, 海顿 is the last name as well as the forename.
海顿 is also a name for the fictitious and mythical characters: Haydn Ross , the soap opera character, Home and Away.