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All over the world, Chengmao (成茂 , Chengmao , 承茂 ) is quite a rare principally boy's, but scarcely girly first name. The first name Chengmao is characteristic of Eastern Asia, particularly China, where it is a rare principally male, but very infrequently female name. Much less frequently, Chengmao is the last name as well as the forename.