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Surname Okabe (オカベ , Okabe , Окабе ) , worldwide, is quite a common last name. The surname Okabe is characteristic of the Democratic Republic of the Congo, where it is quite a rare surname, Paraguay, and Albania, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in the Democratic Republic of the Congo, Brazil, and Japan. More prevalently, Okabe is the forename as well as the last name.