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Around the world, Uo (Uo , อุโอ ) is quite a rare gender-neutral forename. The first name Uo is characteristic of Egypt, where it is a rare epicene name, Saudi Arabia, and Iraq, where it is a very rare boy's name. In absolute terms, it is the most numerous in China, Egypt, and Saudi Arabia. More frequently, Uo is the last name as well as the forename.