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Surname Riel (Riel
, រៀល
, リエル
) , in the world, is a common cognomen. The surname Riel is habitual in Cambodia, where it is quite a common surname, Netherlands, and Belgium, where it is quite a rare surname. In absolute terms, it is the most numerous in Cambodia, Netherlands, and Philippines. Much less frequently, Riel is the forename as well as the last name.