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Cognomen Löss (Les , Less , Лес ) , in all the world, is a common surname. The cognomen Löss is characteristic of Guadeloupe, where it is quite a common surname, Slovenia, and Botswana, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Myanmar, Indonesia, and the United States. More prevalently, Löss is the forename as well as the last name.