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Across the world, Chiaki (Chiaki , チアキ , 千晶 , among others...) is quite a rare principally feminine, but scarcely masculine first name. The given name Chiaki is characteristic of Japan, where it is quite a rare principally girly, but very seldom masculine name, Hong Kong, where it is a rare feminine name, and Australia, where it is a very rare female name. In absolute terms, it most frequently occurs in Japan, the United States, and China. More frequently, Chiaki is the last name as well as the forename.
Chiaki is also a name for the fictitious and mythical characters: Chiaki Mamiya , the fictional character from The Girl Who Leapt Through Time; Chiaki Ōgaki , the fictional character from Laid-Back Camp; Chiaki Kanda , the fictional character from Atsumare! Fushigi Kenkyū-bu; Chiaki Nanami , the fictional character from Danganronpa 2: Goodbye Despair and Chiaki Sakashita , the The Fruit of Grisaia's character.