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Family name 伦丁 (Lundin , 伦丁 , Lunding ) , in all the world, is a common cognomen. The last name 伦丁 is characteristic of Northern Europe, particularly Sweden, where it is a common surname, Denmark, where it is quite a common surname, and Norway, where it is quite a rare surname. In absolute terms, it is the most numerous in Sweden, the United States, and Denmark. Much less frequently, 伦丁 is the forename as well as the last name.