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Last name Oita (Oita
, 大分
) , across the world, is quite a rare surname. The last name Oita is characteristic of Romania, where it is quite a rare surname, Israel, where it is a rare surname, and Greece, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Romania, Nigeria, and Indonesia. Likewise, Oita is the forename as well as the last name.