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Cognomen Oley (Oley , 奥利 , Олей ) , in the world, is quite a rare surname. The cognomen Oley is characteristic of Isle of Man, where it is quite a rare surname, Indonesia, where it is a rare surname, and the United Kingdom. Measured by absolute frequency, it most frequently occurs in Indonesia, the United States, and Germany. Very seldom, Oley is the forename as well as the last name.