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.