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Across the world, Addison (Addison , Аддисон , أديسون) is quite a common mostly male, but infrequently girly given name. The forename Addison is characteristic of Hong Kong, where it is quite a rare masculine name, Ghana, where it is quite a rare unisex name, and the United States, where it is quite a rare mostly masculine, but infrequently female name. More prevalently, Addison is the last name as well as the forename.
Addison is also a name for the fictitious and mythical characters: Addison Montgomery , the fictional character on the ABC television series Grey's Anatomy and Private Practice and Dr. Addison Bennet , the character from Alice Through the Looking Glass.