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Family name 计 (Kai , 计 , Jì ) , worldwide, is a widespread cognomen. The last name 计 is characteristic of Malaysia, where it is a common surname, Macao, where it is quite a common surname, and Lebanon (explore the name in all countries). Measured by absolute frequency, this name is the most popular in China, Malaysia, and Myanmar. Also, 计 is the forename as well as the last name.