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Cognomen 格拉斯 (Gras , Glass , Glas ) , in the world, is a common last name. The cognomen 格拉斯 is habitual in Guernsey, where it is quite a common surname, France, and Netherlands (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, France, and Germany. Very seldom, 格拉斯 is the forename as well as the last name.