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Surname Roer (鲁尔 , Roer
, Руль
) , all around the world, is quite a rare cognomen. The family name Roer is characteristic of Norway, where it is quite a rare surname, Kazakhstan, and Denmark, where it is a rare surname. Measured by absolute frequency, it is commonest in Ukraine, Germany, and Kazakhstan. Very seldom, Roer is the forename as well as the last name.