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Around the world, Kaiwen (凯文 , 开文
, Kaiwen
) is a common dominantly masculine, but infrequently girly forename. The first name Kaiwen is characteristic of China, where it is quite a rare dominantly male, but seldom feminine name, Singapore, where it is a rare unisex name, and Malaysia, where it is a very rare dominantly boy's, but infrequently female name. Measured by absolute frequency, it most frequently occurs in China, Singapore, and the United States. Very seldom, Kaiwen is the last name as well as the forename.
Kaiwen is also a prevalent name for the fictitious and mythical characters: Proteus , the fictional character in Marvel Comics, Uncanny X-Men; Agent K , the fictional character in the Men in Black franchise, Men in Black 3; Kevin Wendell Crumb , the main antagonist of the 2016 film Split; Kevin Sydney , the fictional character in Marvel Comics, Uncanny X-Men and Kevin Ryan , the character from Castle, and in many other works.