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Across the world, Oita (Oita , 大分 ) is a rare unisex first name. The forename Oita is habitual in Romania, where it is quite a rare unisex name, Israel, where it is a rare female name, and Nigeria, where it is a very rare gender-neutral name. Measured by absolute frequency, this name is the most popular in Romania, Nigeria, and China. Also, Oita is the last name as well as the forename.