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Around the world, Ribu (Ribu , Arivo ) is quite a rare gender-neutral forename. The first name Ribu is habitual in United Arab Emirates, where it is a rare boy's name, Indonesia, where it is a rare unisex name, and India, where it is a very rare epicene name. In absolute terms, it is the most numerous in India, Indonesia, and Japan. Likewise, Ribu is the last name as well as the forename.