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Family name Tchai (Tchai , Чаи , ไช่) , around the globe, is a rare last name. The last name Tchai is habitual in Netherlands, where it is a rare surname, Russia, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, the name is most common in Russia, Netherlands, and France. Much less frequently, Tchai is the forename as well as the last name.