Copenhagen University Library

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The Copenhagen University Library (Danish: Københavns Universitetsbibliotek) in Copenhagen, Denmark, is the main research library of the University of Copenhagen. Founded in 1482, it is the oldest library in Denmark.

The old main building of the library is located in Fiolstræde in central Copenhagen. It was designed by Johan Daniel Herholdt and completed in 1861. A second library, known as the Copenhagen University Library North (55°41′50″N 12°33′39″E / 55.6971°N 12.5608°E / 55.6971; 12.5608 (Copenhagen University Library North)), is located in Nørre Allé and is the library for natural sciences and medicine.

Since 1989, the Copenhagen University Library has been part of the Royal Library of Denmark but it is administered through the KUBIS system.