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Surname 古野 (Коно , Furuno , 古野) , in all the world, is a rare cognomen. The last name 古野 is characteristic of Bulgaria, where it is quite a rare surname, Armenia, where it is a rare surname, and Denmark, where it is a very rare surname. Measured by absolute frequency, it is commonest in Bulgaria, Brazil, and Japan. Also, 古野 is the forename as well as the last name.