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Family name 毅 (毅 , Ngai , Yì ) , across the world, is a widespread cognomen. The family name 毅 is characteristic of Hong Kong, where it is a common surname, Cayman Islands, and Macao, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in China, Hong Kong, and Indonesia. More frequently, 毅 is the forename as well as the last name.