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Family name Zilai (自来 , 子来 , 紫来 ) , all over the world, is quite a rare surname. The surname Zilai is habitual in Hungary, where it is quite a rare surname, Nigeria, where it is a rare surname, and Romania. Not in comparison with a country's population, the name is most common in China, Nigeria, and Hungary. More prevalently, Zilai is the forename as well as the last name.