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Cognomen Udras (Udras
, Удрас
) , all around the world, is a rare family name. The last name Udras is characteristic of Northern Europe, particularly Estonia, where it is quite a common surname, Lithuania, where it is quite a rare surname, and Finland, where it is a rare surname. In absolute terms, it is the most numerous in Estonia, Russia, and Lithuania. Very seldom, Udras is the forename as well as the last name.