DNU or Dnu may refer to:

• The New University Hospital (DNU), the largest single hospital in Denmark
• Dnipro National University
• DAT LT (ICAO airline code: DNU)
• ISO 639:dnu, the ISO 639-3 code for Danau language
• Necessity and Urgency Decree (in Spanish, "Decreto de necesidad y urgencia"), a special kind of order issued by the President of Argentina
• Dnu Huntrakul, a prominent Thai composer and chamber musician

This disambiguation page lists articles associated with the title DNU.
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