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All over the world, Haisu (海粟 , 海苏 , 海素 ) is quite a rare gender-neutral first name. The forename Haisu is characteristic of China, where it is a rare gender-neutral name, Tanzania, where it is a very rare masculine name, and Nigeria, where it is a very rare largely boy's, but uncommonly feminine name. Not in comparison with a country's population, it is the most numerous in China, India, and Tanzania. Much less frequently, Haisu is the last name as well as the forename.
Ma, Ding, Gong, Lang, Juma, Jing, Hong, Wang, Yang, Yuan, Zeng, Zhao, Zhou, Cheng, Jiang, Huang, Zhang, Zheng, Bohham, Joseph, Wangsu, Josaham, Rong, Wangjen, Cong, Chen, Ge, Li, Ju, He, Wu, Yu, Qu, Sha, Shi, Sun, Kim, Ren, Guo, Lai, Liu, Jin, Tao, Hua, Xie, Miao, Shen, Cang, and Arangham