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Last name Aisien (Aisien , Айсиэн ) , throughout the world, is a rare surname. The last name Aisien is habitual in Nigeria, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Italy. Measured by absolute frequency, it is commonest in Nigeria, the United States, and the United Kingdom. Also, Aisien is the forename as well as the last name.