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In the entire world, Masato (Masato , マサト , 正人 ) is quite a rare boy's first name. The first name Masato is characteristic of Japan, where it is quite a rare boy's name, Hong Kong, where it is a rare male name, and Tanzania. Not in comparison with a country's population, the name is most common in Japan, China, and the United States. More frequently, Masato is the last name as well as the forename.
Masato is also a name for the fictitious and mythical characters: Masato Midou , the fictional character in Ubunchu!.