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Last name Gessner (Gessner , Гесснер , Geßner ) , across the world, is a common cognomen. The cognomen Gessner is characteristic of Germany, where it is quite a rare surname, Austria, and Moldova. Not in comparison with a country's population, it is commonest in Germany, the United States, and Brazil. Very seldom, Gessner is the forename as well as the last name.