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Throughout the world, Napier (Napier ) is a rare dominantly male, but infrequently girly first name. The first name Napier is habitual in South Africa, where it is a very rare male name, the United Kingdom, and the United States, where it is a very rare largely masculine, but seldom feminine name. Measured by absolute frequency, it most frequently occurs in the United States, South Africa, and Philippines. Much more prevalently, Napier is the last name as well as the forename.
Napier is also a name for the fictitious and mythical characters: .