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Last name チナツ (Chinatsu , チナツ , Tinatu ) , around the world, is a common cognomen. The cognomen チナツ is characteristic of Japan, where it is quite a common surname, Indonesia, where it is a very rare surname, and Nigeria. Not in comparison with a country's population, it is commonest in Japan, Indonesia, and China. Much less frequently, チナツ is the forename as well as the last name.