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Last name Chihara (チハラ , Chihara , 千原 ) , in the entire world, is a rare surname. The cognomen Chihara is characteristic of Malaysia, where it is a rare surname, Japan, where it is a very rare surname, and France. Not in comparison with a country's population, this name is the most popular in the United States, Japan, and Malaysia. More prevalently, Chihara is the forename as well as the last name.