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Cognomen 泉 (泉 , Izumi ) , globally, is a common family name. The surname 泉 is habitual in Guam, where it is quite a common surname, China, where it is quite a rare surname, and Japan, where it is a rare surname. In absolute terms, the name is most common in China, Japan, and Brazil. More prevalently, 泉 is the forename as well as the last name.