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Across the world, Kaian (开安 , Kaian , Каян ) is quite a rare dominantly male, but infrequently girly first name. The first name Kaian is characteristic of Macao, where it is quite a common girly name, Brazil, where it is a rare male name, and Saudi Arabia, where it is a rare female name. Measured by absolute frequency, it most frequently occurs in China, Brazil, and Macao. Likewise, Kaian is the last name as well as the forename.