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In the entire world, Dupin (Dupin , 迪潘 , Дупин ) is a rare epicene forename. The forename Dupin is habitual in France, where it is a very rare unisex name, Indonesia, where it is a very rare masculine name, and India, where it is an extremely rare epicene name. Measured by absolute frequency, it is commonest in India, China, and Indonesia. Predominantly, Dupin is the last name as well as the forename.
Dupin is also a name for the fictitious and mythical characters: .