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Last name Kiyoshi (清 , Kiyoshi , キヨシ , among others...) , worldwide, is a widespread cognomen. The last name Kiyoshi is characteristic of Eastern Asia, particularly Japan, where it is quite a common surname, China, and Hong Kong, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in China, Japan, and Indonesia. Likewise, Kiyoshi is the forename as well as the last name.