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Across the world, أو. (O. , أو.) is a common unisex given name. The first name أو. is habitual in Indonesia, where it is quite a rare unisex name, Taiwan, where it is a rare male name, and Romania, where it is a rare girly name. Not in comparison with a country's population, the name is most common in Indonesia, China, and Taiwan. Very seldom, أو. is the last name as well as the forename.
أو. is also a name for the fictitious and mythical characters: Wendy O. Koopa , the fictional character from the Mario franchise, Super Mario Maker 2; O. Tidemann , character in Sesam Stasjon; O. Uplavici , the fictional author of a 1887 scientific article created by mistaken attribution, Dr O. Uplavici (1887-1938); O. Fanth Mzn , character in Bommelsaga and O.B. , the UK soap opera character, created 1997, Hollyoaks.