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In the entire world, 蒙日 (Monge , 蒙日 ) is a rare unisex forename. The first name 蒙日 is habitual in Tanzania, where it is a rare epicene name, Peru, where it is a rare male name, and Italy, where it is a rare gender-neutral name. Not in comparison with a country's population, it is the most numerous in India, Tanzania, and Indonesia. More frequently, 蒙日 is the last name as well as the forename.