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Surname Orphan (Orphan , Orfo , Orphanus ) , in the world, is a rare family name. The cognomen Orphan is characteristic of Uganda, where it is a rare surname, New Zealand, and South Africa, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in the United States, Uganda, and the United Kingdom. Likewise, Orphan is the forename as well as the last name.