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Family name Chuai (จรวย , Chuai , تشواي) , all over the world, is quite a rare surname. The last name Chuai is habitual in Malaysia, where it is a rare surname, China, and Singapore. Not in comparison with a country's population, this name is the most popular in China, Malaysia, and Brazil. Also, Chuai is the forename as well as the last name.