Family name Jitsuo (Jitsuo 
) , across the world, is a rare surname. The cognomen Jitsuo is characteristic of Singapore, where it is a rare surname, Japan, and Mexico, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Japan, Singapore, and China. Much more frequently, Jitsuo is the forename as well as the last name.
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